Did you perform the Remote Keyless Entry Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Remote Keyless Entry

Press each button of the transmitter one at a time.

Does the system operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Lock and unlock the door locks using the controls inside the vehicle.

Do the locks operate properly?

Go to Step 4

Go to Diagnostic System Check - Door Systems in Doors

Important:  Inspect that the keyless entry transmitter is the correct model for the vehicle remote system. A wrong model transmitter may pass this test, but will not activate the vehicle remote system.

1. Turn on the J 43241 Keyless Entry Tester.
2. Place the transmitter on the J 43241 test pad.
3. Press each button of the transmitter one at a time.

Does a tone sound and the green light illuminate on the J 43241 after each button is pressed?

Go to Step 9

Go to Step 5

Do any of the buttons on the transmitter sound the tone and illuminate the green light when pressed?

Go to Step 8

Go to Step 6

Replace the transmitter battery. Refer to Transmitter Battery Replacement .

Did you complete the replacement?

Go to Step 7

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1. Turn on the J 43241 Keyless Entry Tester.
2. Place the transmitter on the J 43241 test pad.
3. Press each button of the transmitter one at a time.

Does a tone sound and the green light illuminate on the J 43241 after each button is pressed?

Go to Step 9

Go to Step 8

Replace the transmitter.

Did you complete the replacement?

Go to Step 12

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Press the PANIC button on the transmitter.

Does the PANIC function operate normally?

Go to Step 10

Go to Step 12

Perform the synchronization procedure. Refer to Transmitter Synchronization .

Do the locks cycle to lock then unlock?

Go to Step 11

Go to Step 12

Operate the transmitter within range of the vehicle.

Do all of the Remote Keyless Entry functions operate normally?

Go to Step 25

Go to Step 12

Important:  All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. If the system is placed in program mode it will erase all previously programmed transmitters upon the receipt of the programming signal from the first transmitter. Perform the programming procedure. Refer to Transmitter Programming .

Do the locks cycle to lock the unlock?

Go to Step 25

Go to Step 13

1. Turn OFF the ignition.
2. Disconnect the RCDLR.
3. Connect a test lamp between the battery positive voltage circuit of the RCDLR and a good ground.

Does the test lamp illuminate?

Go to Step 14

Go to Step 21

Connect a test lamp between the battery positive voltage circuit and the ground circuit of the RCDLR.

Does the test lamp illuminate?

Go to Step 15

Go to Step 22

15

1. Disconnect the test lamp.
2. Turn ON the ignition, with the engine OFF.
3. Measure the voltage between the keyless entry serial data circuit of the RCDLR and a good ground.

Does the voltage measure within the specified range?

Go to Step 16

Go to Step 18

16

1. Turn ON the ignition, with the engine OFF.
2. Connect a test lamp between the keyless entry serial data circuit of the RCDLR and a good ground.

Does the test lamp illuminate?

Go to Step 17

Go to Step 19

Test the keyless entry serial data circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 20

Test the keyless entry serial data circuit for an open, high resistance, or short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 20

Inspect for poor connections at the harness connector of the RCDLR. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 23

Inspect for poor connections at the harness connector of the body control module (BCM). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 25

Go to Step 24

Repair the open, high resistance, or short to ground in the battery positive voltage circuit of the RCDLR. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 25

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Repair the open or high resistance in the RCDLR ground circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 25

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Important: Perform the remote control door lock transmitter programming procedure when replacing the RCDLR.

Did you complete the repair?

Go to Step 25

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Important: Perform the BCM programming procedure when replacing the BCM.

Did you complete the repair?

Go to Step 25

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3