i have 1 headlight that wont come up and im getting power to both open and close wires at motor with switch on or off
May 21, 2012 at 2:31 AM
how do you check a headlight motor control module to see if it is bad
2002 PONTIAC FIREBIRD
BILLMILL5050
- MEMBER
- 66 POSTS
Advertisement
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
you are supposed to have power there. the module controls the ground according to which way you want the motor to run. the body control module may monitor this function, not sure. a shop with a scan tool can verify this and manipulate the motor if the bcm has control.
Roy
Roy
May 21, 2012 at 2:42 AM
what controls the headlight motors when they wont go up or down one works other one doesnt would obd 2 scanner pick up anything like that? i thought that one wire was for open and 1 was for close
May 21, 2012 at 2:58 AM
ASEMASTER6371
- ✓ASE Certified Mechanic
- 52,796 POSTS
the bcm changes the powers and grounds for the operation of the motor.
obd 2 scanner will communicate with the bcm to monitor commands.
Roy
obd 2 scanner will communicate with the bcm to monitor commands.
Roy
May 21, 2012 at 3:01 AM
so bcm and headlight motor controller module are the same thing or module sends info to bcm?
May 21, 2012 at 11:26 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.