DTC B2170 [ADVANCED KEYLESS ENTRY AND START SYSTEM]

id09021g802500

DTC B2170

Push switch (steering lock unit)

DETECTION CONDITION

Detect the push switch OFF signal when ignition switch is ON position

POSSIBLE CAUSE

•  Steering lock unit malfunction

•  Open or short circuit in wiring harness between keyless control module and steering lock unit

•  Keyless control module malfunction

DTC B2170	Push switch (steering lock unit)
DETECTION CONDITION	Detect the push switch OFF signal when ignition switch is ON position
POSSIBLE CAUSE	• Steering lock unit malfunction • Open or short circuit in wiring harness between keyless control module and steering lock unit • Keyless control module malfunction

Diagnostic procedure

STEP	INSPECTION		ACTION
1	INSPECT COMMUNICATION CIRCUIT FOR CONTINUITY • Disconnect keyless control module connector and steering lock unit connector. • Is there continuity between keyless control module terminal 3E and steering lock unit terminal E?	Yes	Replace the steering lock unit and perform the resetting procedure for the steering lock unit. (See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
1		No	Repair the wiring harness between the steering lock unit and keyless control module.
2	INSPECT KEYLESS CONTROL MODULE • Clear the DTC using the M-MDS. • Turn the ignition switch to the ON position. • Is the DTC displayed? ― M-MDS: B2170	Yes	Replace the keyless control module and perform the resetting procedure for the advanced keyless system when replacing the keyless control module. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND START SYSTEM].)
2		No	DTC troubleshooting completed.