A 2004 chevy tahoe instrument cluster parking brake light is red,is that due to the overlay or a bulb
If your amber ABS lamp and the red "parking brake" warning lamp illuminate together without any prior pump constantly running problem; the pump motor wires are most likely broken.
The heat shrink tubing that seals the red/black power leads to the motor may have allowed water to enter. The copper conductor turns into a powdery green copper oxide over time due to electrolysis as a small current is applied to the motor all times (even when vehicle is off). The wires will look perfectly intact on the outside even though the copper conductor has been destroyed. The associated error codes will either be C0267 or C0268.
Initial problems will be an intermittent amber ABS and red BRAKE lamp illuminating simultaneously. Over time, the lamps will stay on constantly. In any of the circumstances, you have lost your ABS at all times... even when the lamps are off during the intermittent stage of the system failure.
Dealer specifies pump assembly must be replaced. Not necessary.
The wires can be resoldered to the motor terminal block and resealed with new heat shrink tubing and sensor safe silicone. Do not remove the motor from the pump housing as it is difficult to align the eccentric cam on the motor shaft with the pump mechanism.
This is a common problem that can be solved by resoldering the pump power leads. If the pump runs all the time and the red "BRAKE" lamp has illuminated after pulling the ABS fuse or unplugging the motor; the EBCM (ABS control module) will have to be rebuilt. This can be done for $100.
Both pump motor failure and EBCM failure can be repaired without costly replacement
Feb 18, 2017 |
Cars & Trucks