2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 555

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 555

4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.

5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.

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

the RHSM.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RHSM.

6. If all circuits test normal, replace the RHSM.

B2170 02 or B2170 05

1. Ignition OFF, disconnect the X2, X4 harness connectors at the RHSM.

2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 20 X4 and the low reference circuit terminal 8 X2.

瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat

cushion heater element/temperature sensor.

瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits

test normal, replace the seat cushion heater element/temperature sensor.

3. Connect the X2, X4 harness connectors at the RHSM.

4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.

5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.

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

the RHSM.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RHSM.

6. If all circuits test normal, replace the RHSM.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Rear Seat Cushion Heater Replacement ()

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

programming

Memory Seat Module

DTC B1925 or B2170 (w/o HP2 with Memory)

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 B1925 02

- Left Seat Heater Cushion Sensor Circuit Short to Ground

DTC B1925 05

- Left Seat Heater Cushion Sensor Circuit Short to Battery or Open

DTC B2170 02

- Right Seat Heater Cushion Sensor Circuit Short to Ground

DTC B2170 05

- Right Seat Heater Cushion Sensor Circuit Short to Battery or Open

Diagnostic Fault Information