2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 984

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 984

Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for Scan Tool Information

Circuit/System Verification

Ignition ON, observe the scan tool Position Sensor Data parameters. The readings should vary between 0.35-4.75 volts while the vehicle is jounced.

Circuit/System Testing

1. Ignition OFF, disconnect the harness connector at the applicable suspension position sensor.

2. Ignition OFF, test for less than 5 ohm between the low reference circuit terminal C and ground.

瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If circuit tests normal, replace the ESC

module.

3. Ignition ON, test for 4.75-5.25 volts between the 5 volt reference circuit terminal A and ground.

瀚慖f less than the specified range, test the 5 volt reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,

replace the ESC module.

瀚慖f greater than the specified range, test the 5 volt reference circuit for a short to voltage. If the circuit tests normal, replace the ESC

module.

4. Verify the applicable scan tool position sensor parameter is less than 0.35 volts.

瀚慖f greater than the specified range, test the signal circuit terminal B for a short to voltage. If all circuits test normal replace the ESC

module.

5. Install a 3A fused jumper wire between the signal circuit terminal B and the 5 volt reference circuit terminal A. Verify the scan tool position

sensor parameter is greater than 4.75 volts.

瀚慖f less that the specified range, test the signal circuit for a short to ground or an open high resistance. If all circuits test normal replace the

ESC module.

6. If all circuits test normal, test or replace the applicable suspension position sensor.

Component Testing

1. Install a 3A fused jumper wire between the 5 volt reference terminal A and 5 volts. Install a jumper wire between the low reference terminal

C and ground.

2. Sweep the suspension position sensor through the entire range while monitoring the voltage between the signal terminal B and the low

reference terminal C. The range should vary between 0.35-4.75 volts without any spikes or dropouts.

瀚慖f not within the specified range or if it is erratic, replace the applicable suspension position sensor.

Repair Instructions

* Electronic Suspension Front Position Sensor Replacement (See: Sensors and Switches/Sensors and Switches - Steering and

Suspension/Sensors and Switches - Suspension/Ride Height Sensor/Service and Repair/Electronic Suspension Front Position Sensor

Replacement)

* Electronic Suspension Rear Position Sensor Replacement - Left Side (See: Sensors and Switches/Sensors and Switches - Steering and

Suspension/Sensors and Switches - Suspension/Ride Height Sensor/Service and Repair/Electronic Suspension Rear Position Sensor

Replacement - Left Side)

* Electronic Suspension Rear Position Sensor Replacement - Right Side (See: Sensors and Switches/Sensors and Switches - Steering and

Suspension/Sensors and Switches - Suspension/Ride Height Sensor/Service and Repair/Electronic Suspension Rear Position Sensor

Replacement - Right Side)

* Suspension Position Calibration (With Z95) (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic

)/Service and Repair/Suspension Position Calibration (With Z95))Suspension Position Calibration (Without Z95) (See: Steering and

Suspension/Suspension/Suspension Control ( Automatic - Electronic )/Service and Repair/Suspension Position Calibration (Without Z95))

* Control Module References (See: Testing and Inspection/Programming and Relearning) for ESC replacement, setup, and programming

Repair Verification

1. Install any components or connectors that have been removed or replaced during diagnosis.

2. Perform any adjustment, programming or setup procedures that are required when a component or module is removed or replaced.

3. Clear the DTCs.

4. Use the scan tool Diagnostic Counter Reset output control function to bypass the 3 consecutive ignition cycle requirement for setting a DTC.

This will ensure that if a DTC was to be reset during the repair verification process, it will be displayed on the scan tool.