'89 FJ62 Intermittent Heater Problem

[andrew.fletcher]

Unfortunately it's not a worn motor, it was replaced with an OEM less than 6 months ago.

The motor stops intermittently, for no more than 10 seconds then kicks back on. It has happened at both low speed and max on the switch, a/c switched on or off, when it's been running for 5 minutes or an hour. I couldn't get it to happen over rough terrain, thinking it may have been a loose wire. When I checked the diagnostic codes it reads "51" which looks like it could be the issue but not sure how to check the ECU. I checked the A/C circuit on the ECU and it seems fine. Not sure what to check since it's intermittent. ????

 

[Michael Hanson]

Sounds like it could be a lose fuse .Check the fuse box with a con. light. Mike

 

[D'Animal]

I was going to post up that you could come over and grab parts off of my 1989 FJ62 Front Cut, but you moved.

 

[cruiser88]

Check the plug for the heater..sounds like its is loose.

 

[andrew.fletcher]

The first time I checked the wires they were all good. Decided to check them farther up the line and found a splice that looks like it was grounding itself out. Re-wired it but haven't driven yet to verify that was it. I hope so cause I've got enough electrical type stuff wrong right now with fuel management.