U1000/ ECT not working
Thread Starter
TECH Enthusiast
Joined: Mar 2003
Posts: 618
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From: San Diego
U1000/ ECT not working No ECT.
ECT is seeing ~5volts, sensor has resistance so I don't think its broke, swapped it anyway, getting a U1000 code (but not an ECTcode).
Cleaned the PCM contacts with electrical cleaner stuff, checked the grounds (ECT is grounded to the PCM I think, I reached back and checked the grounds on the back of the head but I think more would be haywire if a PCM ground was not grounded).
Any ideas?
Thanks.
ECT is seeing ~5volts, sensor has resistance so I don't think its broke, swapped it anyway, getting a U1000 code (but not an ECTcode).
Cleaned the PCM contacts with electrical cleaner stuff, checked the grounds (ECT is grounded to the PCM I think, I reached back and checked the grounds on the back of the head but I think more would be haywire if a PCM ground was not grounded).
Any ideas?
Thanks.
Thread Starter
TECH Enthusiast
Joined: Mar 2003
Posts: 618
Likes: 0
From: San Diego
I sorted it out. The return wire to the PCM was shorted somewhere. It was getting voltage to the sensor but nothing back at the PCM. I just ghetto rigged it, cut out the sensor and spliced new wires in.
It was weird because I didn't think a U1000 code would pop for the ECT.
It was weird because I didn't think a U1000 code would pop for the ECT.
