| 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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
C12B012 |
Left Front Wheel ABS Release Solenoid Control Circuit Short to Battery |
Any of the following is detected:
|
No. 2 skid control ECU (brake actuator assembly) |
Comes on |
|
|
C12B014 |
Left Front Wheel ABS Release Solenoid Control Circuit Short to Ground or Open |
Any of the following is detected:
|
No. 2 skid control ECU (brake actuator assembly) |
Comes on |
|
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 |
- |
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Solenoid return current terminal disconnection signal |
On |
|
Solenoid GND terminal disconnection signal |
On |
C12A7 (Case 3)
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Divide ABS hold solenoid current monitor value by ABS hold solenoid target current value |
Less than 0.25 |
C12A8 (Case 1)
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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)
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Solenoid load leakage signal |
On |
C12A8 (Case 4)
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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.
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON and turn the GTS on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off.
- Turn the ignition switch to ON (READY) and turn the GTS on.
- Drive the vehicle at a speed of 20 km/h (12 mph) for 1 minute. [*1]
-
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.
- Enter the following menus: Chassis / Brake/EPB / Utility / All Readiness.
-
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".
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![2022 - 2024 MY RAV4 RAV4 HV [12/2021 - ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): UTILITY](/t3Portal/stylegraphics/info.gif)
PROCEDURE
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1. |
REPLACE BRAKE ACTUATOR ASSEMBLY |
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END |
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