ECM Code 15
Thread Starter
Racer
Joined: Oct 2012
Posts: 298
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OK I found a flow chart for code 15 and I'm stuck at the part probe yellow wire with a voltmeter and I got .5 volts which is OK. It says Sensor ground circuit open, faulty ecm conn or ecm. How should I proceed? Electrical is above my skill level. .
Team Owner
Joined: Sep 2003
Posts: 25,394
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Have you actually checked the CTS resistance values for the engine when at running temperature.
I'm assuming you're at FIG 32 of the FSM. Is that correct? Check the resistance of the CTS using the chart in FIG 32
If the engine is COLD check it cold then maybe start and run to something near the expected run temperature and check.
Last edited by WVZR-1; Apr 25, 2017 at 09:24 PM.
Thread Starter
Racer
Joined: Oct 2012
Posts: 298
Likes: 0
I don't believe I've ever seen anything in CODE 15 diagnostics that mentions .5V as being a "good/expected" value.
Have you actually checked the CTS resistance values for the engine when at running temperature.
I'm assuming you're at FIG 32 of the FSM. Is that correct? Check the resistance of the CTS using the chart in FIG 32
If the engine is COLD check it cold then maybe start and run to something near the expected run temperature and check.
Have you actually checked the CTS resistance values for the engine when at running temperature.
I'm assuming you're at FIG 32 of the FSM. Is that correct? Check the resistance of the CTS using the chart in FIG 32
If the engine is COLD check it cold then maybe start and run to something near the expected run temperature and check.
So I feel like this might be over my ability but hopefully not!
