Power Door Lock Test 23A - Remote Keyless Entry Problem
NOTE:
Perform POWER DOOR LOCK TEST 1A
before proceeding with this test. For connector terminal identification, refer to CONNECTOR IDENTIFICATION
. For wiring diagrams, refer to WIRING DIAGRAMS
. Perform, after each repair, VERIFICATION TEST VER-1A - VERIFICATION PROCEDURE
.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
NOTE:
After repairing Remote Keyless Entry (RKE) system, transmitters may have to be reprogrammed. See KEYLESS ENTRY SYSTEM
article.
- Access RKE module under instrument panel cover. See Fig 1 . Turn ignition off. Disconnect RKE module connector. Using scan tool in voltmeter mode, measure voltage at terminal No. 3 (Pink wire) on RKE harness connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, go to next step.
- Using scan tool in ohmmeter mode, measure resistance at terminal No. 5 (Gray/Black wire) on RKE module harness connector. Grounding of circuit will cause RKE system to be inoperative. If resistance is less than 100 ohms, repair Gray/Black wire for short to ground. If resistance is 100 ohms or greater, go to next step.
- Using scan tool in ohmmeter mode, measure resistance at terminal No. 4 (Black/Light Green wire) on RKE module harness connector. If resistance is 5 ohms or greater, repair open Black/Light Green wire. If resistance is less than 5 ohms, go to next step.
- Ensure gear shift selector is in Park. Using scan tool in voltmeter mode, measure voltage at terminal No. 6 (Light Green/Red wire) on RKE module harness connector. If voltage is more than 4 volts, go to POWER DOOR LOCK TEST 23B . If voltage is 4 volts or less, go to next step.
- Connect jumper wire between ground and terminal No. 6 (Light Green/Red wire) on RKE module harness connector. Disconnect Body Control Module (BCM) connector "A". BCM is located with junction block under driver's side instrument panel. See Figure . Using scan tool in ohmmeter mode, measure resistance at terminal No. 1 (Light Green/Red wire) on connector "A". If resistance is 5 ohms or greater, repair open Light Green/Red wire. If resistance is less than 5 ohms, go to next step.
- Remove jumper wire. Using scan tool in ohmmeter mode, measure resistance at terminal No. 1 (Light Green/Red wire) on connector "A". If resistance is 4800 ohms or greater, replace BCM. If resistance is less than 4800 ohms, repair Light Green/Red wire for short to ground.