DTC B2170 [ADVANCED KEYLESS ENTRY AND START SYSTEM]SM2445806
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
• Open or short circuit in wiring harness between keyless control module and steering lock unit
• Steering lock unit malfunction
• 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.
• Inspect the wiring harness between the keyless control module connector terminal 3E and steering lock unit terminal E for the following:
― Short to ground
― Short to power supply
― Open circuit
• Is there continuity?
Yes
Replace the steering lock unit and perform the resetting procedure for the steering lock unit.
(See STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION.)
(See STEERING LOCK UNIT ID CODE REGISTRATION [ADVANCED KEYLESS ENTRY AND START SYSTEM].)
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.
(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND START SYSTEM].)
No
DTC troubleshooting completed.