Test 3A - No Response From Powertrain Control Module
NOTE:
For connector terminal ID, see CONNECTOR IDENTIFICATION
. For wiring diagrams, see WIRING DIAGRAM
. Perform TEST VER-1A
after each repair.
CAUTION:
Always turn ignition off prior to disconnecting any module connector.
- If engine does not run, see the TESTS W/O CODES article in the ENGINE PERFORMANCE section. If engine runs, turn ignition off. Disconnect Powertrain Control Module (PCM). PCM is located at right corner of firewall. Turn ignition on. Connect jumper wire between ground and terminal No. C30 (Violet/Brown wire) on PCM connector.
- Using scan tool, perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open Violet/Brown wire. If scan tool displays BUS SHORT TO GROUND, go to next step.
- Move jumper wire to terminal No. C28 (White/Black wire) on PCM connector. Perform CCD BUS test. If scan tool does not display BUS SHORT TO GROUND, repair open White/Black wire. If scan tool displays BUS SHORT TO GROUND, replace PCM.