Power Door Lock Test 19B - Shorted Key-In Ignition Circuit
NOTE:
Perform POWER DOOR LOCK TEST 19A
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.
- Disconnect key-in ignition switch connector. See Figure in CHIME TEST 4B. Using scan tool, read key-in ignition switch status. If scan tool displays KEY-IN IGNITION SW: CLOSED, go to next step. If scan tool does not display KEY-IN IGNITION SW: CLOSED, replace ignition switch. See STEERING COLUMN SWITCHES article.
- Turn ignition off. 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. 4 (Light Blue wire) on BCM connector "A". If resistance is less than 5 ohms, repair Light Blue wire for short to ground. If resistance is 5 ohms or greater, replace BCM.