Battery drains overnight Removed Fuse #17

NAGOHNAD

MEMBER
2008 CHRYSLER PT CRUISER
2.0L
4 CYL
2WD
AUTOMATIC
58,000 MILES

Excessive IOD (ignition-off draw) of more than 1/2 amp. Removed Fuse #17 for IOD Feed/CVT MOD/MOD Wcm and current dropped but showed a pulse about every second. Removed IOD Sense fuses and current dropped. What is CVT MOD in the Fuse # 17 circuit? MOD Wcm is Wireless Control Module.

Monday, March 17th, 2014 AT 2:42 PM

2 Replies

WRENCHTECH

MECHANIC
20,761 POSTS

Hello,

This happens when the steering control module goes out here is a fuse wiring diagrams so you can see what it on the circuit and diagrams to show how to change the module out. This guide can help as well

https://www.2carpros.com/articles/car-battery-dead-overnight

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.

Cheers

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Monday, March 17th, 2014 AT 2:57 PM

ASEMASTER6371

MECHANIC
52,796 POSTS

Good morning,

50 to 75 milli amps is normal draw. If that is what you have, you are good.

What was the draw when you pulled fuse 17?

The pulsed voltage is normal as long as it does not exceed 50 to 75 milli amps. The pulsed current to the CVT is a pulse modulated voltage from the TCM.

If you pull fuse 8 it should shut down the draw to normal. If it does then you need to disconnect one component at a time to find out which module is causing the draw.

Roy

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