2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1662

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1662

Condition 4

* One IMS direction switch circuit has failed.

* Based upon the remaining IMS circuits the HPCM calculated two directions at the same time.

Condition 5

More than one IMS direction circuit has failed and the HPCM cannot calculate a transmission direction.

Action Taken When the DTC Sets

* DTC P16F2 is a Type A DTC.

* The HPCM commands the battery energy control module (BECM) to open the high voltage contactor relays.

Conditions for Clearing the DTC

DTC P16F2 is a Type A DTC.

Reference Information

Schematic Reference

Hybrid Controls Schematics ()

Connector End View Reference

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

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)

DTC Type Reference

Powertrain Diagnostic Trouble Code (DTC) Type Definitions (See: Diagnostic Trouble Code Descriptions/Powertrain Diagnostic Trouble Code

(DTC) Type Definitions)

Scan Tool Reference

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

Special Tools

* DT-47825-10 Jumper Harness

* DT-48493 Jumper Harness

Circuit/System Verification

1. Clear the DTC information.

2. Turn the ignition OFF for 1 minute.

3. Turn the ignition ON.

4. Test for correct operation of the Direction IMS in every range selection. Hold the selector in each gear position for at lease 2 seconds. Refer

to Typical Scan Tool Data.

瀚慖f the Direction IMS operation does not match the logic table proceed with Circuit/System Testing.

5. Retest for DTC P16F2.

瀚慖f the DTC resets, program the PIM with the latest software version and recheck for DTCs. IF the DTC resets after programming or if the

PIM already contains the latest software version, replace the PIM.

Circuit/System Testing

1. Disconnect the transmission X176 24-way connector. Ignition ON. The scan tool IMS Status parameter should display HI for the R1, R2, D1,

D2 and S signal circuit displays.

瀚慖f a signal displays LOW, disconnect the PIM connector X1 and test the circuit for a short to ground.

瀚慖f the circuit tests normal, replace the PIM.