VWDiesel.net The IDI, TDI, and mTDI source.

General Information => Troubleshooting => Topic started by: ilikevwdiesel on August 19, 2011, 05:43:34 am

Title: 98 jetta tdi blows fuse on fan control module
Post by: ilikevwdiesel on August 19, 2011, 05:43:34 am

the chip fuse not the band fuse, and when it blows AC won't work. I don't have a bentley for the vehicle and don't know what to do. it had a 20 amp in there when I got the car, that one started blowing the second the AC was turned on, replaced with a 30 amp and it worked for an hour or so yesterday then blew and now it blows a 30 instantly too. anyone? it's my gf's car she beetches when there's no AC help me out people I aint gettin any lol.

Title: Re: 98 jetta tdi blows fuse on fan control module
Post by: the caveman on August 19, 2011, 07:39:26 pm

Call me tomorrow, i'll be holding my bentley trying to figure out my alarm

Title: Re: 98 jetta tdi blows fuse on fan control module
Post by: Henchman on August 30, 2011, 10:15:49 am

The fan is most likely drawing too much current.  Before replacing make sure that there is no debris or that the bearing/bushing on the second fan (assuming you have one.... you should) hasn't failed.

Ian

Title: Re: 98 jetta tdi blows fuse on fan control module
Post by: the caveman on August 30, 2011, 12:18:47 pm

I believe his compressor was shot

Title: Re: 98 jetta tdi blows fuse on fan control module
Post by: Henchman on September 11, 2011, 06:40:58 am

I think his fan is shot.   The compressor doesn't draw any real current, and doesn't draw it from the fan control module.

Ian

Title: Re: 98 jetta tdi blows fuse on fan control module
Post by: the caveman on September 11, 2011, 06:53:55 am

I went through the wiring diagram with him and that was the conclusion.
S, want to chime in here ?

Title: Re: 98 jetta tdi blows fuse on fan control module
Post by: vanagonturbo on September 11, 2011, 06:56:51 pm

Simple diagnostic incurring about $1 worth of parts.

1. unplug rad fan. turn AC on. fuse blows? replace fan motor. Fuse doesnt blow? move to step 2.

2. unplug compressor clutch. Fuse still blows? need more diagnosis. Fuse does not blow? replace compressor/clutch assy.