2010 Cadillac Truck Escalade AWD V8-6.2L Page 1003
锟斤拷If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace
the electronic suspension control module.
11. If all circuits test normal, test or replace the ELC relay.
Component Testing
Relay Test
1. Ignition OFF, disconnect the relay.
2. Test for 50-200 ohms of resistance between terminals 85 and 86.
锟斤拷If the resistance is not within the specified range, replace the relay.
3. Test for infinite resistance between the following terminals:
* 30 and 86
* 30 and 87
* 30 and 85
* 85 and 87
锟斤拷If not the specified value, replace the relay.
4. Install a 20 amp fused jumper wire between relay terminal 85 and 12 volts. Install a jumper wire between relay terminal 86 and ground. Test
for less than 2.0 ohms of resistance between terminals 30 and 87.
锟斤拷If greater than the specified range, replace the relay.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Relay Replacement (Attached to Wire Harness) (See: Power and Ground Distribution/Power Distribution Relay/Service and Repair/Relay
Replacement (Attached to Wire Harness))Relay Replacement (Within an Electrical Center) (See: Power and Ground Distribution/Power
Distribution Relay/Service and Repair/Relay Replacement (Within an Electrical Center))
* Air Compressor Replacement (See: Steering and Suspension/Suspension/Suspension Control ( Automatic - Electronic
)/Compressor/Pump/Service and Repair)
* 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 module replacement, programming, and
setup.
C0750
DTC C0750, C0755, C0760, or C0765
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC C0750 00
- Left Front Low Tire Pressure Sensor
DTC C0750 08
- Left Front Low Tire Pressure Sensor Signal Invalid
DTC C0755 00
- Right Front Low Tire Pressure Sensor
DTC C0755 08
- Right Front Low Tire Pressure Sensor Signal Invalid
