2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 554

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 554

Conditions for Running the DTC

The RHSM must be powered.

Conditions for Setting the DTC

B1925 02 or B2170 02

The temperature sensor voltage drops below 0.80 V for more than 1 second.

B1925 05 or B2170 05

The temperature sensor voltage is greater than 5 V for more than 1 second.

Action Taken When the DTC Sets

The heated seat function for the affected seat will be disabled.

Conditions for Clearing the DTC

* The current DTC will clear 3 seconds after the reference voltage returns to normal operating range, and the ignition is cycled OFF then back

to ACC or RUN.

* A history DTC will clear after 50 ignition cycles or with a scan tool using the clear DTCs function.

Reference Information

Schematic Reference

Heated/Cooled Seat Schematics ()

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)

Description and Operation

Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()

Electrical Information Reference

* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit

Testing/Circuit Testing)

* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic

Procedures/Connector Repairs/Connector Repairs)

* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General

Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)

* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring

Repairs/Wiring Repairs)

Scan Tool Reference

Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information

Circuit/System Verification

Verify the type of vehicle and the heated seat system for which the DTC set.

If the DTC set in the rear heated seat module, refer to Circuit/System Testing below.

If the DTC set in a vehicle equipped with memory, refer to DTC B1925 or B2170 (w/o HP2 with memory).

If the DTC set in a hybrid or a non-hybrid vehicle without memory, refer to DTC B1925 or B2170 (HP2 or dealer installed w/o memory).

Circuit/System Testing

B1925 02, B1925 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 9 X4 and the low reference circuit terminal 6 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.