Test NTC-11A - Checking Pcm Power & Grounds
NOTE:
Perform TEST NTC-1A - NO TROUBLE CODES (NTC) TESTS
or TEST NTC-10A - CHECKING PARK/NEUTRAL POSITION SWITCH
before proceeding.
- Turn ignition off. Disconnect Powertrain Control Module (PCM) connectors. Using scan tool in ohmmeter mode, check resistance of PCM ground circuits. See PCM TERMINALS 10, 47, 50, 46 & 20 CONNECTOR WIRE ID table. If resistance is 5 ohms or less for any ground circuit, go to next step. If resistance is more than 5 ohms, repair ground circuit for high resistance. Perform TEST VER-2A - ROAD TEST VERIFICATION .
- Using scan tool in voltmeter mode, check voltage of PCM fused B+ circuit. If voltage is 10 volts or more, go to next step. If voltage is less than 10 volts, repair open fused B+ circuit. Perform TEST VER-2A - ROAD TEST VERIFICATION .
- Turn ignition on. Using scan tool in voltmeter mode, check voltage of PCM fused ignition switch output circuit. If voltage is 10 volts or more, go to next step. If voltage is less than 10 volts, repair open fused ignition switch output circuit. Perform TEST VER-2A - ROAD TEST VERIFICATION .
- Turn ignition off. Reconnect PCM connectors. PCM power and ground circuits are okay. Test is complete.
PCM TERMINALS 10, 47, 50, 46 & 20 CONNECTOR WIRE ID
| Application | Wire Color | |
|---|---|---|
| PCM Ground Circuit | ||
| PCM Terminal No. 10 | Black/Tan | |
| PCM Terminal No. 47 | Black/White | |
| PCM Terminal No. 50 | Black/Tan | |
| PCM Fused B+ Circuit: PCM Terminal No. 46 | Red/White | |
| PCM Fused Ignition Switch Output Circuit: PCM Terminal No. 20 | Dark Blue/White | |