PCM/regulator keeps burning out.
#12
I 'll type yhe info instead easir to read then from a photo.
Check codes.P0743, P1765, P1682, P1495, P0753. All codes are 12v supply/rely codes or charging system volts low. Found TSB for concern-checked for shorted 12v feed wire. Checked for shorted on WT/BL at ALT shorted to ground with PCM disconnected. Traced to shorted WT/BL wire at LDP harness. Repaired wire. Checked for short again. Ok now. Charging system still inop. No 12v driver in PCM failed. Needs new PCM.
WT/BL wire shorted to ground caused PCM 12v driver to fail. Located short on WT/BL wire at LDP harness. REpaired wire. Short caused 12v driver to fail in PCM. Needs new PCM.
Alot of typing but if I can help someone whos have the same problem it was well worth it.
Check codes.P0743, P1765, P1682, P1495, P0753. All codes are 12v supply/rely codes or charging system volts low. Found TSB for concern-checked for shorted 12v feed wire. Checked for shorted on WT/BL at ALT shorted to ground with PCM disconnected. Traced to shorted WT/BL wire at LDP harness. Repaired wire. Checked for short again. Ok now. Charging system still inop. No 12v driver in PCM failed. Needs new PCM.
WT/BL wire shorted to ground caused PCM 12v driver to fail. Located short on WT/BL wire at LDP harness. REpaired wire. Short caused 12v driver to fail in PCM. Needs new PCM.
Alot of typing but if I can help someone whos have the same problem it was well worth it.
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Steveo222 (02-01-2024)
#13