Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM10000000214Q8
Model Year Start: 2022 Model: RAV4 Prod Date Range: [12/2021 -           ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): C12A512,...,C12B014; Left Front Wheel ABS Hold Solenoid Control Circuit Short to Battery; 2022 - 2024 MY RAV4 RAV4 HV [12/2021 -        ]

DTC

C12A512

Left Front Wheel ABS Hold Solenoid Control Circuit Short to Battery

DTC

C12A514

Left Front Wheel ABS Hold Solenoid Control Circuit Short to Ground or Open

DTC

C12A518

Left Front Wheel ABS Hold Solenoid Control Circuit Current Below Threshold

DTC

C12A519

Left Front Wheel ABS Hold Solenoid Control Circuit Current Above Threshold

DTC

C12A51D

Left Front Wheel ABS Hold Solenoid Control Circuit Current Out of Range

DTC

C12B012

Left Front Wheel ABS Release Solenoid Control Circuit Short to Battery

DTC

C12B014

Left Front Wheel ABS Release Solenoid Control Circuit Short to Ground or Open

DESCRIPTION

The solenoid relay and solenoid valves are built into the brake actuator assembly.

The front solenoid valve LH controls the brake fluid pressure of the front wheel cylinder LH of the vehicle.

When these DTCs are stored, the fail-safe function operates and the solenoid relay is turned off to prevent the solenoid valves from operating.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Note

C12A512

Left Front Wheel ABS Hold Solenoid Control Circuit Short to Battery

An excessive current is detected in the solenoid for 0.05 seconds or more.

No. 2 skid control ECU (brake actuator assembly)

Comes on

  • SAE Code: C12A8 (Case 2 and 3)
  • Output ECU: No. 2 skid control ECU (brake actuator assembly)

C12A514

Left Front Wheel ABS Hold Solenoid Control Circuit Short to Ground or Open

Insufficient current is detected in the solenoid for 0.05 seconds or more.

No. 2 skid control ECU (brake actuator assembly)

Comes on

  • SAE Code: C12A7 (Case 1 and 2)
  • Output ECU: No. 2 skid control ECU (brake actuator assembly)

C12A518

Left Front Wheel ABS Hold Solenoid Control Circuit Current Below Threshold

An open is detected in the solenoid for 0.05 seconds or more.

No. 2 skid control ECU (brake actuator assembly)

Comes on

  • SAE Code: C12A7 (Case 3)
  • Output ECU: No. 2 skid control ECU (brake actuator assembly)

C12A519

Left Front Wheel ABS Hold Solenoid Control Circuit Current Above Threshold

Overcurrent is detected in the solenoid for 0.05 seconds or more.

No. 2 skid control ECU (brake actuator assembly)

Comes on

  • SAE Code: C12A8 (Case 4)
  • Output ECU: No. 2 skid control ECU (brake actuator assembly)

C12A51D

Left Front Wheel ABS Hold Solenoid Control Circuit Current Out of Range

Current leakage is detected in the solenoid for 0.05 seconds or more.

No. 2 skid control ECU (brake actuator assembly)

Comes on

  • SAE Code: C12A8 (Case 1)
  • Output ECU: No. 2 skid control ECU (brake actuator assembly)

C12B012

Left Front Wheel ABS Release Solenoid Control Circuit Short to Battery

Any of the following is detected:

  • Overcurrent is detected in the solenoid for 0.05 seconds or more.
  • Overheat in the solenoid is detected for 0.05 seconds or more.
  • When the solenoid is OFF, a current leak in the solenoid circuit is detected for 0.05 seconds or more.

No. 2 skid control ECU (brake actuator assembly)

Comes on

  • SAE Code: C12B3
  • Output ECU: No. 2 skid control ECU (brake actuator assembly)

C12B014

Left Front Wheel ABS Release Solenoid Control Circuit Short to Ground or Open

Any of the following is detected:

  • When the solenoid is not being operated, an open in the solenoid circuit or short to ground is detected for 0.05 seconds or more.
  • When the solenoid is being operated, an open in the solenoid circuit is detected for 0.05 seconds or more.
  • An open in the solenoid ground circuit is detected for 0.05 seconds or more.

No. 2 skid control ECU (brake actuator assembly)

Comes on

  • SAE Code: C12B2
  • Output ECU: No. 2 skid control ECU (brake actuator assembly)

C12B012 DTC Detection Conditions

 

Vehicle Condition

Pattern 1

Pattern 2

Pattern 3

Diagnosis Condition

When the solenoid is OFF

-

-

Malfunction Status

Overcurrent is detected in the solenoid

-

-

Overheat in the solenoid is detected

-

-

A current leak in the solenoid circuit is detected

-

-

Detection Time

0.05 seconds or more.

0.05 seconds or more.

0.05 seconds or more.

Number of Trips

1 trip

1 trip

1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

C12B014 DTC Detection Conditions

 

Vehicle Condition

Pattern 1

Pattern 2

Pattern 3

Pattern 4

Diagnosis Condition

When the solenoid is not being operated

-

-

When the solenoid is being operated

-

-

-

Malfunction Status

An open in the solenoid circuit is detected

-

A short to ground is detected

-

-

-

Detection Time

0.05 seconds or more.

0.05 seconds or more.

0.05 seconds or more.

0.05 seconds or more.

Number of Trips

1 trip

1 trip

1 trip

1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

MONITOR DESCRIPTION

The No. 2 skid control ECU (brake actuator assembly) monitors the drive voltage and current of the ABS holding solenoid and ABS reduction solenoid. Based on the monitored information, if any of the following abnormal conditions are detected, the MIL is illuminated and a DTC is stored.

  • Excessively high current in a solenoid circuit is detected
  • Excessively low current in a solenoid circuit is detected
  • An open in a solenoid circuit is detected
  • Overcurrent in a solenoid circuit is detected
  • A current leak in a solenoid circuit is detected
  • Excessively high temperature in a solenoid is detected
  • An abnormal solenoid circuit is detected

MONITOR STRATEGY

Related DTCs

C12A7: ABS hold solenoid (FL) circuit low

C12A8: ABS hold solenoid (FL) circuit high

C12B2: ABS release solenoid (FL) circuit low

C12B3: ABS release solenoid (FL) circuit high

Required Sensors/Components(Main)

No. 2 skid control ECU (brake actuator assembly)

Required Sensors/Components(Related)

No. 2 skid control ECU (brake actuator assembly)

Frequency of Operation

Continuous

Duration

0.054 seconds

MIL Operation

Immediately

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

C12A7 (Case 1)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A8: ABS hold solenoid (FL) circuit high

C12B2: ABS release solenoid (FL) circuit low

C12B3: ABS release solenoid (FL) circuit high

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

A, B, C and D

A. Command to solenoid relay

On

B. Power supply for solenoid

Higher than 6 V

C. +BS voltage

17.4 V or less

D. Following condition is met

0.054 seconds or more

ABS hold solenoid target current value

0 A

C12A7 (Case 2)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A8: ABS hold solenoid (FL) circuit high

C12B2: ABS release solenoid (FL) circuit low

C12B3: ABS release solenoid (FL) circuit high

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

-

Command to solenoid relay

On

Power supply for solenoid

Higher than 6 V

+BS voltage

17.4 V or less

C12A7 (Case 3)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A8: ABS hold solenoid (FL) circuit high

C12B2: ABS release solenoid (FL) circuit low

C12B3: ABS release solenoid (FL) circuit high

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

A, B, C, D, E, F, G and H

A. Command to solenoid relay

On

B. +BS voltage

17.4 V or less

C. Power supply for solenoid

9.5 V or more

D. Following condition is met

0.048 seconds or more

ABS hold solenoid target current value

0.25 A or more

E. Solenoid overcurrent signal

Off

F. Solenoid driver overtemperature signal

Off

G. Solenoid return current terminal disconnection signal

Off

H. Solenoid GND terminal disconnection signal

Off

C12A8 (Case 1)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A7: ABS hold solenoid (FL) circuit low

C12B2: ABS release solenoid (FL) circuit low

C12B3: ABS release solenoid (FL) circuit high

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

A, B, C, D, E, F, G, H, I and J

A. Command to solenoid relay

On

B. Power supply for solenoid

Higher than 6 V

C. +BS voltage

17.4 V or less

D. Following condition is met

0.054 seconds or more

ABS hold solenoid target current value

0 A

E. Solenoid overcurrent signal

Off

F. Solenoid driver overtemperature signal

Off

G. Solenoid load open/short to ground signal

Off

H. Solenoid load leakage signal

Off

I. Solenoid return current terminal disconnection signal

Off

J. Solenoid GND terminal disconnection signal

Off

C12A8 (Case 2)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A7: ABS hold solenoid (FL) circuit low

C12B2: ABS release solenoid (FL) circuit low

C12B3: ABS release solenoid (FL) circuit high

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

-

Command to solenoid relay

On

Power supply for solenoid

Higher than 6 V

+BS voltage

17.4 V or less

C12A8 (Case 3)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A7: ABS hold solenoid (FL) circuit low

C12B2: ABS release solenoid (FL) circuit low

C12B3: ABS release solenoid (FL) circuit high

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

A, B, C, D and E

A. Command to solenoid relay

On

B. Power supply for solenoid

Higher than 6 V

C. +BS voltage

17.4 V or less

D. Following condition is met

0.054 seconds or more

ABS hold solenoid target current value

0 A

E. Solenoid load open/short to ground signal

Off

C12A8 (Case 4)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A7: ABS hold solenoid (FL) circuit low

C12B2: ABS release solenoid (FL) circuit low

C12B3: ABS release solenoid (FL) circuit high

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

A, B, C, D, E, F, G and H

A. Command to solenoid relay

On

B. +BS voltage

17.4 V or less

C. Power supply for solenoid

9.5 V or more

D. Following condition is met

0.048 seconds or more

ABS hold solenoid target current value

Higher than 0 A

E. Solenoid overcurrent signal

Off

F. Solenoid driver overtemperature signal

Off

G. Solenoid return current terminal disconnection signal

Off

H. Solenoid GND terminal disconnection signal

Off

C12B2 (Case 1)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A7: ABS hold solenoid (FL) circuit low

C12A8: ABS hold solenoid (FL) circuit high

C12B3: ABS release solenoid (FL) circuit high

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

A, B, C and D

A. Command to solenoid relay

On

B. Power supply for solenoid

Higher than 6 V

C. +BS voltage

17.4 V or less

D. Both of the following conditions are met

a and b

a. Following condition is met

0.015 seconds or more

Command to ABS release solenoid

Off

b. Both of the following conditions are met

1 or 2

1. Following condition is met

0.015 seconds or more

Command to reference solenoid

Off

2. Following condition is met

0.006 seconds or more

Command to reference solenoid

On

C12B2 (Case 2)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A7: ABS hold solenoid (FL) circuit low

C12A8: ABS hold solenoid (FL) circuit high

C12B3: ABS release solenoid (FL) circuit high

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

A, B, C and D

A. Command to solenoid relay

On

B. Power supply for solenoid

Higher than 6 V

C. +BS voltage

17.4 V or less

D. Both of the following conditions are met

a and b

a. Either of the following conditions is met

1 or 2

1. Following condition is met

0.015 seconds or more

Command to ABS release solenoid

Off

2. Following condition is met

0.006 seconds or more

Command to ABS release solenoid

On

b. Either of the following conditions is met

1 or 2

1. Following condition is met

0.015 seconds or more

Command to reference solenoid

Off

2. Following condition is met

0.006 seconds or more

Command to reference solenoid

On

C12B3 (Case 1)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A7: ABS hold solenoid (FL) circuit low

C12A8: ABS hold solenoid (FL) circuit high

C12B2: ABS release solenoid (FL) circuit low

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

A, B, C and D

A. Command to solenoid relay

On

B. Power supply for solenoid

Higher than 6 V

C. +BS voltage

17.4 V or less

D. Both of the following conditions are met

a and b

a. Either of the following conditions is met

1 or 2

1. Following condition is met

0.015 seconds or more

Command to ABS release solenoid

Off

2. Following condition is met

0.006 seconds or more

Command to ABS release solenoid

On

b. Either of the following conditions is met

1 or 2

1. Following condition is met

0.015 seconds or more

Command to reference solenoid

Off

2. Following condition is met

0.006 seconds or more

Command to reference solenoid

On

C12B3 (Case 2)

Monitor runs whenever the following DTCs are not stored

C0597: ABS hold solenoid circuit stuck

C12A7: ABS hold solenoid (FL) circuit low

C12A8: ABS hold solenoid (FL) circuit high

C12B2: ABS release solenoid (FL) circuit low

C12BD: ABS hold solenoid (FR) circuit low

C12BE: ABS hold solenoid (FR) circuit high

C12C8: ABS release solenoid (FR) circuit low

C12C9: ABS release solenoid (FR) circuit high

C12D3: ABS hold solenoid (RL) circuit low

C12D4: ABS hold solenoid (RL) circuit high

C12DE: ABS release solenoid (RL) circuit low

C12DF: ABS release solenoid (RL) circuit high

C12E9: ABS hold solenoid (RR) circuit low

C12EA: ABS hold solenoid (RR) circuit high

C12F4: ABS release solenoid (RR) circuit low

C12F5: ABS release solenoid (RR) circuit high

C12F6: ABS hold solenoid other functional

C12F7: ABS hold solenoid other functional

C137C: Brake system voltage input out of range low

C137D: Brake system voltage input out of range high

C13BF: SM solenoid other functional

C13C2: SM1 solenoid circuit low

C13C3: SM1 solenoid circuit high

C13CB: SM2 solenoid circuit low

C13CC: SM2 solenoid circuit high

C143B: Brake system voltage solenoid relay stuck

C143C: Brake system voltage open circuit

All of the following conditions are met

A, B, C, D and E

A. Command to solenoid relay

On

B. Power supply for solenoid

Higher than 6 V

C. +BS voltage

17.4 V or less

D. Following condition is met

a and b

a. Either of the following conditions is met

1 or 2

1. Following condition is met

0.015 seconds or more

Command to ABS release solenoid

Off

2. Following condition is met

0.006 seconds or more

Command to reference solenoid

On

b. Either of the following conditions is met

1 or 2

1. Following condition is met

0.015 seconds or more

Command to reference solenoid

Off

2. Following condition is met

0.006 seconds or more

Command to reference solenoid

On

E. Solenoid load open/short to ground signal

Off

TYPICAL MALFUNCTION THRESHOLDS

C12A7 (Case 1)

Solenoid load open/short to ground signal

On

C12A7 (Case 2)

Either of the following conditions is met

-

Solenoid return current terminal disconnection signal

On

Solenoid GND terminal disconnection signal

On

C12A7 (Case 3)

Divide ABS hold solenoid current monitor value by ABS hold solenoid target current value

Less than 0.25

C12A8 (Case 1)

ABS hold solenoid current monitor value

Higher than 0.1 A

C12A8 (Case 2)

Either of the following conditions is met

-

Solenoid overcurrent signal

On

Solenoid driver overtemperature signal

On

C12A8 (Case 3)

Solenoid load leakage signal

On

C12A8 (Case 4)

Either of the following conditions is met

A or B

A. Both of the following conditions are met

-

Divide ABS hold solenoid current monitor value by ABS hold solenoid target current value

Higher than 2

ABS hold solenoid target current value

0.25 A or more

B. Both of the following conditions are met

-

ABS hold solenoid current monitor value

Higher than 0.5 A

ABS hold solenoid target current value

Less than 0.25 A

C12B2 (Case 1)

Solenoid load open/short to ground signal

On

C12B2 (Case 2)

Either of the following conditions is met

-

Solenoid GND terminal disconnection signal

On

Solenoid load open at ON signal

On

C12B3 (Case 1)

Either of the following conditions is met

-

Solenoid overcurrent signal

On

Solenoid driver overtemperature signal

On

C12B3 (Case 2)

Solenoid load leakage signal

On

COMPONENT OPERATING RANGE

All

All of the following conditions are met

-

Solenoid initial check state

Complete

ABS release solenoid fail (C12C9, C12B3, C12F5, C12DF, C12C8, C12B2, C12F4, C12DE)

Not detected

ABS hold solenoid fail (C12BE, C12A8, C12EA, C12D4, C12BD, C12A7, C12E9, C12D3, C12F6, C12F7)

Not detected

Brake system voltage fail (C143B, C143C)

Not detected

SM solenoid fail (C13C3, C13CC, C13C2, C13CB, C13BF)

Not detected

CONFIRMATION DRIVING PATTERN

NOTICE:

When performing the normal judgment procedure, make sure that the driver door is closed and is not opened at any time during the procedure.

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON and turn the GTS on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the ignition switch off.
  5. Turn the ignition switch to ON (READY) and turn the GTS on.
  6. Drive the vehicle at a speed of 20 km/h (12 mph) for 1 minute. [*1]
  7. Operate the ABS using a drum tester or equivalent. [*2]

    HINT:

    [*1] to [*2]: Normal judgment procedure.

    The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

  8. Enter the following menus: Chassis / Brake/EPB / Utility / All Readiness.
  9. Check the DTC judgment result.

    HINT:

    • If the judgment result shows NORMAL, the system is normal.
    • If the judgment result shows ABNORMAL, the system has a malfunction.
    • If the judgment result shows INCOMPLETE, perform driving pattern again.

CAUTION / NOTICE / HINT

NOTICE:

After replacing the No. 2 skid control ECU (brake actuator assembly), perform "Calibration" after performing "Reset Memory".

Click here 2022 - 2024 MY RAV4 RAV4 HV [12/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): UTILITY

PROCEDURE

1.

REPLACE BRAKE ACTUATOR ASSEMBLY

Click here 2022 MY RAV4 RAV4 HV [12/2021 - 10/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/o Vacuum Brake Booster): REMOVAL 2023 MY RAV4 RAV4 HV [10/2022 - 10/2023]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/o Vacuum Brake Booster): REMOVAL 2024 MY RAV4 RAV4 HV [10/2023 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (w/o Vacuum Brake Booster): REMOVAL

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