DTC U0214 [Advanced Keyless And Start System]

DTC U0214 CHART

DTC U0214	Keyless receiver
DETECTION CONDITION	When the keyless receiver power supply voltage is less than 7.5 V  .
POSSIBLE CAUSE	Keyless receiver malfunction Open or short circuit in wiring harness between keyless control module and keyless receiver Keyless control module malfunction
Courtesy of MAZDA MOTORS CORP.

DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	INSPECT WIRING HARNESS BETWEEN KEYLESS RECEIVER AND GROUND  Disconnect keyless receiver connector. Is there continuity between keyless receiver terminal E and ground?	Yes	Go to next step.
		No	Repair the wiring harness between the keyless receiver and ground. Go to next step.
2	INSPECT COMMUNICATION CIRCUIT FOR CONTINUITY  Disconnect keyless control module connector. Inspect the wiring harness between keyless receiver terminal A and keyless control module terminal 3A, and keyless receiver terminal C and keyless control module terminal 3C for the following: Short to ground Short to power supply Open circuit Is there continuity?	Yes	Go to next step.
		No	Repair the wiring harness between the keyless receiver and keyless control module. Go to next step.
3	INSPECT KEYLESS RECEIVER POWER SUPPLY CIRCUIT  Turn ignition switch to ON position. Measure voltage at terminal 3A of keyless control module connector. Is voltage more than 7.5 V  ?	Yes	Replace keyless receiver. (See KEYLESS RECEIVER REMOVAL/INSTALLATION [WITH ADVANCED KEYLESS SYSTEM] )
		No	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] )