Toyota CH-R Service Manual: Diagnostic Trouble Code Chart

Theft Deterrent System Presence Detection (B279C)

DESCRIPTION If an ECM that is incompatible with the immobiliser system is installed, the ECM stores this DTC. DTC No. Detection Item DTC Detection Condition ...

Theft Deterrent System Communication Line High Fixation (B279A)

DESCRIPTION If the communication line (EFIO-IMI) to the transponder key ECU assembly is stuck high (e.g. shorted to +B), the ECM stores this DTC. DTC No. Detection Item ...

Other materials:

Toyota CH-R Service Manual > Can Communication System: Check Bus 4 Line for Short to GND
DESCRIPTION There may be a short circuit between one of the CAN bus lines and GND when there is no resistance between terminal 22 (CA2H) of the central gateway ECU (network gateway ECU) and terminal 4 (CG) of the DLC3, or terminal 7 (CA2L) of the central gateway ECU (network gateway ECU) and ...

Toyota CH-R Service Manual > Stop Light Switch: Removal
REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during the stop light switch assembly removal/installation are shown below. Necessary Procedures after p ...