Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000014VLQ
Model Year Start: 2018 Model: Camry HV Prod Date Range: [07/2017 - 09/2018]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: C1345,C1368; Linear Solenoid Valve Offset Learning undone; 2018 MY Camry HV [07/2017 - 09/2018]

DTC

C1345

Linear Solenoid Valve Offset Learning undone

DTC

C1368

Linear Solenoid Valve Offset

DESCRIPTION

The skid control ECU (brake booster with master cylinder assembly) stores the individual characteristics of each linear solenoid built into the brake booster with master cylinder assembly. Based on the stored information, the skid control ECU (brake booster with master cylinder assembly) calibrates the individual differences and controls systems.

The skid control ECU (brake booster with master cylinder assembly) receives the shift position P signal from the hybrid vehicle control ECU assembly through the CAN communication system.

These DTCs are cleared when the linear solenoid valve offset learning results are normal.

DTC No.

Detection Item

INF Code

DTC Detection Condition

Trouble Area

Note

C1345

Linear Solenoid Valve Offset Learning undone

1133

The linear solenoid valve offset learning value is not stored.

Perform linear solenoid valve offset learning and check for DTCs. If no DTCs are output again, the valve is normal.

Electronically controlled brake system DTC

HINT:

During Test Mode, related DTCs are cleared.

C1368

Linear Solenoid Valve Offset

1134

The linear solenoid valve offset learning value cannot be obtained.
  • Perform linear solenoid valve offset learning and check for DTCs. If no DTCs are output again, the valve is normal.
  • Skid control ECU (brake booster with master cylinder assembly)

Electronically controlled brake system DTC

CAUTION / NOTICE / HINT

NOTICE:

After replacing the skid control ECU (brake booster with master cylinder assembly), perform linear solenoid valve offset learning, ABS holding solenoid valve learning, yaw rate and acceleration sensor zero point calibration and system information memorization after performing "Reset Memory".

Click here 2018 MY Camry HV [07/2017 - 09/2018]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: INITIALIZATION

HINT:

Before performing linear solenoid valve offset learning, ABS holding solenoid valve learning, yaw rate and acceleration sensor zero point calibration and system information memorization, DTC C1203 will be output.

PROCEDURE

1.

CHECK DTC

(a) Clear the DTCs.

Chassis > ABS/VSC/TRAC > Clear DTCs

(b) Turn the power switch off.

(c) Turn the power switch on (IG).

(d) Check that DTCs other than C1345, C1349 and C1392 are not output.

Chassis > ABS/VSC/TRAC > Trouble Codes

OK:

DTCs other than C1345, C1349 and C1392 are not output.

NG

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

OK

2.

PERFORM AIR BLEEDING

(a) Perform the air bleeding procedure in Bleed Brake System.

Click here 2018 MY Camry HV [07/2017 - 09/2018]; BRAKE SYSTEM (OTHER): BRAKE FLUID: BLEEDING

NEXT

3.

PERFORM LINEAR SOLENOID VALVE OFFSET LEARNING

(a) Turn the power switch off.

(b) Check and ensure the following conditions required for performing linear solenoid valve offset learning and then perform linear solenoid valve offset learning.

Click here 2018 MY Camry HV [07/2017 - 09/2018]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM: INITIALIZATION

Chassis > ABS/VSC/TRAC > Utility

Tester Display

ECB Utility
  1. The auxiliary battery voltage is 11 to 15.5 V when the power switch is on (READY).
  2. The brake actuator (brake booster with master cylinder assembly) is not hot.
  3. The hybrid control system is not malfunctioning.
  4. The shift state indicator shows that the shift lever is in P.
  5. The READY light in the combination meter assembly is illuminated.
  6. The brake pedal is not depressed.
  7. The parking brake is released.
  8. DTC C1451 (Motor Drive Permission Malfunction) is not output. (If it is output, bleed the air from the high-pressure tube.)
NEXT

4.

RECONFIRM DTC

(a) Clear the DTCs.

Chassis > ABS/VSC/TRAC > Clear DTCs

(b) Turn the power switch off.

(c) Turn the power switch on (IG).

(d) Check if the same DTC is output.

Chassis > ABS/VSC/TRAC > Trouble Codes

Result

Proceed to

DTCs C1345 and C1368 are not output.

A

DTCs C1345 and/or C1368 are output.

B
A

END
B

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY