|
electric problem maybe bcm?
1998 GMC Jimmy it has auto head lights. My problem is intermittent,
sometimes I loose power to the heater, radio, interment panel (speed, tach, warning lights, fuel, etc) power outlets, but the car still runs. If I manually turn on head lights I hear a clicking sound under mid dash area. Then everything starts working. I thought maybe it was the wiring harness from the firewall up the steering column but that did not fix it. I then cleaned the ground wire from the battery to the engine but still have the problem. Today I ran a new ground wire from the firewall to the engine and it seems OK. Then a test drive and I hit a bump and off the power went. It must be a connection from the fire wall to the interior but I dont now where to look. I have seen on line it could be the bcm module. IF so where is this located? Any ideas of what to look for would be appreciated. |
Originally Posted by tim153
(Post 258075)
1998 GMC Jimmy it has auto head lights. My problem is intermittent,
sometimes I loose power to the heater, radio, interment panel (speed, tach, warning lights, fuel, etc) power outlets, but the car still runs. If I manually turn on head lights I hear a clicking sound under mid dash area. Then everything starts working. I thought maybe it was the wiring harness from the firewall up the steering column but that did not fix it. I then cleaned the ground wire from the battery to the engine but still have the problem. Today I ran a new ground wire from the firewall to the engine and it seems OK. Then a test drive and I hit a bump and off the power went. It must be a connection from the fire wall to the interior but I dont now where to look. I have seen on line it could be the bcm module. IF so where is this located? Any ideas of what to look for would be appreciated. |
The BCM on the 1999 version is under the steering wheel. It is a device about 3/4" thick and 3" x 6"
|
| All times are GMT -5. The time now is 10:07 PM. |
© 2021 MH Sub I, LLC dba Internet Brands