C1101

DTC C1101

Circuit Description

This circuit is used to monitor the voltage level available to the electronic brake control module (EBCM). If the voltage rises above a certain level, damage to the system may occur.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC C1101 Battery Voltage High

Conditions for Running the DTC

Vehicle speed is greater than 8 km/h (5 mph).

Conditions for Setting the DTC

Ignition voltage to terminal 9 and/or 25 is greater than 17 volts for 1 second.

Action Taken When the DTC Sets

* The solenoid relay opens, removing voltage from the solenoids and pump motor.
* DTC C1101 is stored.
* ABS is disabled, ABS warning lamp turns ON.


Conditions for Clearing the DTC

* If the conditions that set the DTC C1101 are no longer present, the DTC may be cleared by using the proper scan tool.
* The DTC that has not occurred in 100 drive cycles will be cleared from history data.


Diagnostic Aids

Typical causes for DTC C1101 to set:

* Charging system malfunction
* Poor connection
* EBCM malfunction