2010 Cadillac Truck SRX FWD V6-3.0L Page 214

2010 Cadillac Truck SRX FWD V6-3.0L Page 214

DTC B128D 62

The radio has made 3 repeat requests to lower the display without receiving the correct signal from the actuator indicating the display reached the

lowered position.

DTC B128D 63

The radio has made 3 repeat requests to raise the display without receiving the correct signal from the actuator indicating the display reached the

raised position.

Action Taken When the DTC Sets

The radio cancels the raise or lower request and the display either does not move or returns automatically to it's previous position.

Conditions for Clearing the DTC

* A current DTC will clear when the conditions for setting are no longer present.

* A history DTC will clear after 100 malfunction free ignition cycles.

Reference Information

Schematic Reference

Radio/Navigation System Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Radio/Navigation System

Schematics)

Connector End View Reference

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

Description and Operation

Radio/Audio System Description and Operation (See: Accessories and Optional Equipment/Description and Operation/Radio/Audio System)

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

Radio ON, press the NAV button on the Radio/HVAC control. The display should raise from a lowered position, or lower from the raised position

and remain in that position.

Circuit/System Testing

1. Ignition OFF, disconnect the X2 harness connector at the Radio/HVAC display.

2. Reconnect the Radio/HVAC Control, if disconnected.

3. Test for less than less than 20 ohm between the ground circuit terminal 2 and ground.

瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.

4. Test for 6kohm - 13.5kohm between the display position circuit terminal 5 and ground.

瀚慖f less than the specified range, test the circuit for a short to ground. If the circuit tests normal, replace the radio.

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

5. Ignition ON, verify a test lamp illuminates between the B+ circuit terminal 1 and ground.

瀚慖f the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.

6. Verify a test lamp illuminates between the remote enable circuit terminal 3 and ground.