Procedure A - Wireless Inoperative at All Times:

PROCEDURE A - WIRELESS INOPERATIVE AT ALL TIMES:

1. Check battery capacity (See Battery Capacity Check Procedure).

2. Set FM radio to 94.9 MHz* and press the transmitter button while holding transmitter near radio antenna. If noise interference cannot be heard on the radio when the transmitter is depressed, the transmitter is faulty. This test is only used to identify a faulty transmitter, a positive result does not guarantee transmitter integrity or sufficient battery capacity.

* This test cannot be performed on and does not apply to vehicles equipped with a fob type transmitter which use a frequency that does not have a multiple in the FM frequency range.

REMINDER: Transmitters equipped with the Auto Power Off Function quit transmitting 0.8 - 1.2 seconds after depressing the transmitter button.

3. Enter diagnostic mode:

a. Open driver's door.

b. Lock all doors using the interior power door lock switch.

c. Insert key in ignition once and remove.





d. Cycle the door locks (unlock and lock = 1 cycle) using the interior power door lock switch 10 times as shown below (if door locks are cycled too slow or too fast, diagnostic mode will not be initiated).

4. Door locks should cycle (unlock/lock) one time automatically to confirm that diagnostic mode has been entered. If door locks do not cycle, repeat Step 3.

NOTE: If attempts to enter the diagnostic mode fail repeatedly, faulty vehicle harness wiring or a faulty receiver may be the cause. Refer to Matrix Chart of Problem Symptoms in the Wireless Door Lock Control System section of the repair manual for diagnosis.

5. Within 10 seconds of entering diagnostic mode, press the transmitter button once and count the number of door lock (unlock/lock) cycles. Refer to the applicable charts.





Non-Programmable Type (Pre-1995):





Programmable Key Type (1995 and later):





Programmable Fob Type (1995 and later):





Repeat diagnostic mode initiation procedure (Steps 3 through 5) with a known good transmitter. Do NOT register the transmitter first. Count the number of door lock cycles (unlock/lock) and refer to the table above.