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Symptom Diagnosis

See SYMPTOM DIAGNOSIS  table and determine which item or circuit to inspect.

SYMPTOM DIAGNOSIS

Symptom Inspect
Remote Keyless Entry Completely Inoperative (1) ECU Power Source Circuit
(1) Ignition Switch Circuit
(1) Door Courtesy Switch Circuit
(1) Door Key Lock/Unlock Switch Circuit (Unlock Side)
(1) Door Key Lock/Unlock Switch Circuit (Lock Side)
(1) Key Unlock Warning Switch Circuit
(2) Wireless Door Lock ECU
Remote Unlock Inoperative, Remote Lock Okay (1) Door Key Lock/Unlock Switch Circuit (Unlock Side)
(1) Door Unlock Detection Switch Circuit
(2) Wireless Door Lock ECU
Remote Lock Inoperative, Remote Unlock Okay (1) Door Key Lock/Unlock Switch Circuit (Lock Side)
(2) Wireless Door Lock ECU
Transmitter Misoperation Prevention Function Inoperative (1) Key Unlock Warning Switch Circuit
(2) Wireless Door Lock ECU
Remote Door Lock Function Operates With Each Door Opened (1) Door Courtesy Switch Circuit
(2) Wireless Door Lock ECU
Remote Keyless Entry Operation Abnormal (3) (1) Door Unlock Detection Switch Circuit
(2) Wireless Door Lock ECU
Door Lock Buzzer Inoperative (1) Wireless Door Lock Buzzer Circuit
(2) Wireless Door Lock ECU
Taillights Do Not Respond (1) Taillight Relay Circuit
(2) Wireless Door Lock ECU
(1) See appropriate circuit test under CIRCUIT TESTS . If more than one circuit test is listed, perform tests in order listed.
(2) Check wireless door lock ECU. See WIRELESS DOOR LOCK ECU CIRCUIT  under CIRCUIT TESTS. Replace if necessary.
(3) When attempting to unlock one door using wireless remote, all doors unlock.