Resynchronize all of the keyless entry transmitters. Refer to Transmitter Synchronization

Do the door locks cycle while you resynchronize the keyless entry transmitters?

--

Go to Step 2

Go to Step 3

Press the following buttons (one at a time) on the keyless entry transmitter in order to test the keyless entry system:

Do all of the keyless entry system functions operate correctly?

--

Go to Step 15

Go to Step 4

Use a DMM in order to measure the voltage on each one of the keyless entry transmitter batteries.

Is the voltage within the specified range?

3-3.5 V

Go to Step 5

Go to Step 6

Operate the power door locks using any of the power door lock switches.

Do the power door locks operate normally?

--

Go to Step 7

Refer to Power Door Locks Inoperative in Doors

1. Reprogram all keyless entry transmitters. Refer to Transmitter Programming
2. Press the following buttons (one at a time) on the keyless entry transmitter in order to test the keyless entry system:

•	The LOCK button

•	The UNLOCK button

•	The rear compartment release button

Does the keyless entry system operate correctly?

--

Go to Step 15

Go to Step 8

1. Replace the keyless entry transmitter batteries. Refer to Transmitter Battery Replacement
2. Resynchronize the keyless entry transmitter. Refer to Transmitter Synchronization

Do the door locks cycle while you resynchronize the keyless entry transmitter?

--

Go to Step 2

Go to Step 8

1. Reprogram all of the keyless entry transmitters. Refer to Transmitter Programming
2. Press the following buttons (one at a time) on the keyless entry transmitter in order to test the keyless entry system:

•	The LOCK button

•	The UNLOCK button

•	The rear compartment release button

Does the keyless entry system work?

--

Go to Step 15

Go to Step 9

1. Program a known good keyless transmitter. Refer to Transmitter Programming
2. Press the following buttons (one at a time) on the keyless entry transmitter in order to test the keyless entry system:

•	The LOCK button

•	The UNLOCK button

•	The rear compartment release button

Does the keyless entry system work?

--

Go to Step 9

Go to Step 10

Replace the faulty keyless entry transmitter. Refer to Transmitter Programming

Has the repair been made?

--

Go to Step 15

--

1. Disconnect the remote control door lock receiver (RCDLR).
2. Use a test light in order to probe between the RCDLR connector terminal N and terminal E.

Did the test light illuminate?

--

Go to Step 11

Go to Step 12

1. Inspect the RCDLR connector for poor terminal contact.
2. Replace the RCDLR if the RCDLR connector is OK. Refer to Receiver Replacement

Has the repair been made?

--

Go to Step 15

--

Use a test light in order to probe between the RCDLR connector terminal E and the ground.

Did the test light illuminate?

--

Go to Step 13

Go to Step 14

Repair the following conditions in CKT  750:

Has the repair been made?

--

Go to Step 15

--

Repair the following conditions in CKT 1540:

Has the repair been made?

--

Go to Step 15

--

1. Ensure that the ignition switch is in the LOCK position.
2. Reconnect any connectors that were previously disconnected.
3. Install any components that were previously removed.

Have all repairs been made?

--

Go to Remote Keyless Entry System Check

--