DTC B2170 [Advanced Keyless And Start System]

DTC B2170 CHART

DTC B2170	Push switch
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
Courtesy of MAZDA MOTORS CORP.

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 [WITH ADVANCED KEYLESS SYSTEM] )
1		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 .) (See CARD KEY ID CODE REGISTRATION [WITH ADVANCED KEYLESS SYSTEM] ) (See STEERING LOCK UNIT ID CODE REGISTRATION [WITH ADVANCED KEYLESS SYSTEM] ) (See KEYLESS CONTROL MODULE CONFIGURATION ) (See IMMOBILIZER SYSTEM-RELATED PARTS PROGRAMMING [WITH ADVANCED KEYLESS SYSTEM] )
2		No	DTC troubleshooting completed.