MAF check engine light and transmission help - Toyota Yaris Forums

heeroyuy01195 · 04-01-2012, 04:57 PM

My leads on my multimeter were too thick to make contact with the ECM connector and I must not have noticed it last night. Anyways, I just redid everything and here's what I got:

Check for open:
C26-3 to C20-118 = 0.2 to 0.6 ohms
C26-2 to C20-116 = 0.3 ohm

Check for short:
C26-3 to Ground = No Reading
C20-118 to Ground = No Reading

For the grounding point I used the one on the driver's side shock tower and the negative terminal that goes onto the battery. I'm guessing that my mechanic must have knocked a wire loose somewhere?

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04-01-2012, 04:57 PM	#16
heeroyuy01195 Post count means nothing. View User's Garage Drives: AW11, NCP91, Old Motorcycles Join Date: Jul 2006 Location: Florida Posts: 375	My leads on my multimeter were too thick to make contact with the ECM connector and I must not have noticed it last night. Anyways, I just redid everything and here's what I got: Check for open: C26-3 to C20-118 = 0.2 to 0.6 ohms C26-2 to C20-116 = 0.3 ohm Check for short: C26-3 to Ground = No Reading C20-118 to Ground = No Reading For the grounding point I used the one on the driver's side shock tower and the negative terminal that goes onto the battery. I'm guessing that my mechanic must have knocked a wire loose somewhere?