Power Door Lock Test 2D - Shorted Door Unlock Driver Circuit
NOTE:
Perform POWER DOOR LOCK TEST 2A
before proceeding with this test. For connector terminal ID, see CONNECTOR IDENTIFICATION
and WIRING DIAGRAMS
. Perform TEST VER-1A - VERIFICATION PROCEDURE
after each repair.
CAUTION:
Always turn ignition switch to OFF position prior to disconnecting or connecting any module connector.
- Disconnect BCM 20-pin connector located at junction block and ensure connector is clean and not damaged. See Figure in CHIME TEST 3A. Using external ohmmeter, measure resistance between ground and terminals No. 1 (Pink/Light Blue wire), No. 2 (Pink/Dark Blue wire), No. 3 (Pink/Black wire) and No. 4 (Dark Blue/White wire) on BCM 20-pin connector.
- If resistance is less than 5 ohms, repair shorted door unlock driver circuit, replace fuse No. 9 in junction block and replace BCM (relay in BCM will be damaged). If resistance is 5 ohms or greater on any of tested circuits, replace BCM and fuse No. 9.