Are there any problems with the GMLAN modules?
Are there any problems with the GMLAN modules?
When checking for DTCs there may be a loss of communication codes for the High Speed GMLAN modules (examples include U0100, U0101, U0102, U0106, U 0109, U0117, U0121, U0122, U0132, U0137, U0140 and/or U0073. These issues may be intermittent, making it difficult to diagnose.
What causes wiring harness to short out on GMLAN?
These areas have been identified in the field. * Adjustable pedal motor: As the brake pedal is applied, the DLC wiring harness may rub on the adjustable pedal motor and short out. This concern will normally occur when the brake pedal is depressed. * Rear of transfer case: Wiring harness chaffing on the transfer case.
How can I tell if my GMLAN wiring is faulty?
Inspect the two VCIMs listed in the DTC module list with the Tech 2 under Vehicle Control Systems / Vehicle DTC Information / DTC Display, as this may indicate a faulty VCIM. If the VCIM is suspect, remove the “Info” fuse, which is the power feed to the VCIM and see if the High Speed GMLAN concern is gone.
Can a GM Tech 2 scan be done at a GM dealer?
Keep in mind that the gage testing and any programming needs to be done at a GM dealer using the GM Tech 2 scan tool. If they respond correctly to that command that means the gages and wiring to the gages is fine and the part (s) responsible for sending info to the gage is inaccurate. If they don’t sweep ok then suspect a faulty cluster.
When checking for DTCs there may be a loss of communication codes for the High Speed GMLAN modules (examples include U0100, U0101, U0102, U0106, U 0109, U0117, U0121, U0122, U0132, U0137, U0140 and/or U0073. These issues may be intermittent, making it difficult to diagnose.
What are the problems with the 2011 Chevy Equinox?
Worst 2011 Chevrolet Equinox Problems #1: Excessive Oil Consumption 2011 Equinox Average Cost to Fix: $2,300 #2: Clattering Noise When Starting Car 2011 Equinox Average Cost to Fix: $2,500 #3: Transmission Failure 2011 Equinox Average Cost to Fix: $3,300
These areas have been identified in the field. * Adjustable pedal motor: As the brake pedal is applied, the DLC wiring harness may rub on the adjustable pedal motor and short out. This concern will normally occur when the brake pedal is depressed. * Rear of transfer case: Wiring harness chaffing on the transfer case.
Inspect the two VCIMs listed in the DTC module list with the Tech 2 under Vehicle Control Systems / Vehicle DTC Information / DTC Display, as this may indicate a faulty VCIM. If the VCIM is suspect, remove the “Info” fuse, which is the power feed to the VCIM and see if the High Speed GMLAN concern is gone.
