Code 118 no continuity on harness
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Cross-Country
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Code 118 no continuity on harness
My truck is showing a code 118 high voltage for ECT. The wires to the harness are covered in black tape so i wanted to run continuity to test the wires to the PCM harness. I originally read the diagram wrong, i have continuity to pin 46, not not pin 7 as it should. Im assuming the wire is cracked, but what could cause it to run to 46?
Logistics Pro
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From: Mojave, Ca
Pin 46 is your 5v reference voltage. Pin 7 is the sensor return voltage (or resistance if you wanna think of it as that). Pin 46 should have continuity on one pin in the ECT connector. Pin 7 should have continuity on the other pin in the ECT connector.
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goootcha, taking a look at the MAF, it has continuity from that same grey/red wire to 46 as well. Thank you for the input. The opposite wire still has zero cont. so Ill work on stripping that wire out and replacing it. 12 guage braided correct?
Logistics Pro
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From: Mojave, Ca
18 gauge, stranded. Yes. Pin 46 feeds 5v to about 6 different sensors, and then the sensors send a signal back to the ECU with a dedicated wire/pin. Pin 7 happens to be the one for the ECT sensor.
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awesome, thank you very much
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