DTC B2170 [ADVANCED KEYLESS SYSTEM]


id0902e1350800

DTC B2170

Push switch.

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 3N and steering lock unit terminal A?
Yes
Replace the steering lock unit and perform the resetting procedure for the steering lock unit.
No
Repair the wiring harness between the steering lock unit and keyless control module.
2
INSPECT KEYLESS CONTROL MODULE
• 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.
No
DTC troubleshooting completed.