2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1020

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 1020

DTC C0890 00

- Device Voltage Reference Output 3 Circuit

DTC C1115 08

- Manual Trailer Brake Apply Request Switch Signal Invalid

DTC C1115 5A

- Manual Trailer Brake Apply Request Switch Signal Plausibility Failure

DTC C1116 00

- Manual Trailer Brake Apply Request Signal 1

DTC C1117 00

- Manual Trailer Brake Apply Request Signal 2

DTC C1118 00

- Trailer Brake Control Sensitivity Switch Circuit

DTC C1118 08

- Trailer Brake Control Sensitivity Switch Circuit Signal Invalid

Diagnostic Fault Information

Circuit/System Description

The fuel pump/trailer brake control module system has a control panel with the trailer gain and manual apply switches. The switches are located on

the instrument panel to the left of the steering column. The control panel and switches allows you to adjust the amount of output, referred to as

trailer gain, available to the electric trailer brakes and allows you to manually apply the trailer brakes. The Trailer Brake Control Panel, and

switches are used along with the Trailer Brake Display Page on the Driver Information Center to adjust and display power output to the trailer

brakes.

Conditions for Running the DTC

* Battery voltage is 9.5-17 V.

* The module is powered up and completes initialization.

Conditions for Setting the DTC

C0880 00 or C0890 00

The fuel pump/trailer brake control module detects the 5 V reference circuit voltage is less than 4.8 V or greater than 5.2 V.

C1115 08 or C1115 5A

* The fuel pump/trailer brake control module detects the manual apply switch is applied before the ignition is cycled OFF, and continuously

applied for 30 seconds after ignition is cycled to ON.

* The fuel pump/trailer brake control module detects the manual apply switch is applied continuously for 5 minutes.

* The fault is detected if the manual apply switch input and redundant apply switch input exceeds a threshold for an extended amount of time.

C1116 00

* The fuel pump/trailer brake control module detects a short to ground, open or a short to voltage on the manual apply signal circuit.

* The fuel pump/trailer brake control module detects a open on the low reference circuit.

C1117 00

* The fuel pump/trailer brake control module detects a short to ground, open or a short to voltage on the redundant manual apply signal circuit.

* The fuel pump/trailer brake control module detects a short to voltage on the manual apply signal circuit.

* The fuel pump/trailer brake control module detects a open on the low reference circuit.