DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 37 (Electronically Controlled Brake System (HV) - Diagnostic Codes (08 Of 11)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C136F-00: Non-learning of the Braking System information. [12/2019 - ] >> Description

DTC C136F-00: Non-learning of the Braking System information. [12/2019 - ]: Description

WARNING: This page is about a different variant/trim than selected.

The No. 1 skid control ECU (brake booster with master cylinder assembly) stores identification information sent from other ECUs when the vehicle is shipped from the factory and changes the control constant for each system (ABS, VSC, TRAC, etc.) based on the identification information.

NOTE:

DTC C136F-00 is output when an incorrect ECU is installed. If initialization is performed and learning occurs with an incorrect ECU installed, operations and functions will differ from those stored when the vehicle was shipped from the factory. Therefore, make sure that learning occurs properly.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note
C136F-00 Non-learning of the Braking System information. Either of the following is detected:
  • The drive system information sent from the hybrid vehicle control ECU does not match the information stored in the No. 1 skid control ECU (brake booster with master cylinder assembly).
  • No system information stored in the No. 1 skid control ECU (brake booster with master cylinder assembly).
  • Incorrect hybrid vehicle control ECU installed
  • No. 1 skid control ECU (brake booster with master cylinder assembly)
Does not come on Output ECU: No. 1 skid control ECU (brake booster with master cylinder assembly)
HINT: 
The DTC is cleared when the conditions return to normal.