P1125 Diagnostic Trouble Code Discussion for October 2009
Accelerator Pedal Position System
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| Help Request | Posted | |
| 1998 GMC C3500 Sierra SL 6.5L Poor Idle Quality, VIN: 1GDKC34F2W P1125: Accelerator Pedal Position System Malfunction. Have a concern with pcm suppling 5 volts on both app2 and app3 signal lines. Connector C1 on Terminals D4 and C5. I have tried 2 other "remmaned pcm's" with same out come. Have cut the 3 signal wires at pcm, voltage readings on APP side show correct, s... |
October 19, 2009 |
