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the circuit tests normal and the DLIS circuit fuse is open, test the signal circuit 3. Verify the scan tool Key In Ignition Status parameter is Key Out. If not the specified value, test the signal circuit terminal 5 for a short to voltage. If the 4. Install a 3A fused jumper wire between the signal circuit terminal 5 and the B+ circuit terminal 4. Verify the scan tool Key in Ignition Status parameter is Key In. If not the specified value, test the signal circuit for an open/high resistance. If the 5. If all circuits test normal, test or replace the ignition switch. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Ignition and Start Switch Replacement Control Module References for the BCM replacement, setup, and programming COMPASS MALFUNCTION (MIRROR) Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. Circuit/System Description The inside rearview mirror (ISRVM) uses 2 magnetic field sensors for compass direction. One Reference Information Schematic Reference Instrument Cluster Schematics Inside Rearview Mirror Schematics
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Connector End View Reference Component Connector End Views Description and Operation Instrument Cluster Description and Operation Electrical Information Reference Circuit Testing Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for scan tool information Circuit/System Verification 1. Ignition ON, compass ON, verify that there is a compass reading on the display. If the display is blank, replace the ISRVM. If the display shows the letter C or CAL, perform the compass calibration procedure. 2. Verify that the compass reading on the display is correct. If not correct, perform the compass magnetic variation adjustment procedure. Refer to 3. If the display is still incorrect, replace the ISRVM. Repair Procedures Perform the Diagnostic Repair Verification Control Module References for ISRVM replacement, setup and programming DRIVER INFORMATION CENTER (DIC) SWITCH MALFUNCTION Diagnostic Instructions
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. Diagnostic Fault Information Circuit/System Description The driver information switches are normally open momentary switches. Power is provided to the Reference Information Schematic Reference Instrument Cluster Schematics Connector End View Reference Component Connector End Views Description and Operation Instrument Cluster Description and Operation Automatic Day-Night Mirror Description and Operation Electrical Information Reference Circuit Testing Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance DIC Switch Signal 1 1 B3567 01 B3567 59 1. Driver Information Center (DIC) Switch Inoperative
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Connector Repairs Testing for Intermittent Conditions and Poor Connections Wiring Repairs Scan Tool Reference Control Module References for scan tool information Circuit/System Testing 1. Ignition OFF, disconnect the harness connector at the DIC switch assembly. 2. Ignition OFF, test for less than 1 ohm between the low reference terminal 2 and ground. If greater than the specified range, test the low reference circuit for an open/high 3. Ignition OFF, test for less than 1 ohm between the ground terminal 5 and ground. If greater than the specified range, test the ground circuit for an open/high resistance. 4. Ignition ON, verify that all of the scan tool DIC Switch parameters are Inactive. If any are not Inactive, test the appropriate signal circuit terminal 1 or terminal 3 for a 5. Ignition ON, install a 3-amp fused jumper wire between the signal circuit terminal 1 and the low reference circuit terminal 2. Verify the scan tool DIC Switch parameters, except the If any are not Active, test the signal circuit for a short to voltage or an open/high 6. Ignition ON, install a 3-amp fused jumper wire between the signal circuit terminal 3 and ground. Verify the scan tool DIC Fuel Info. parameter is Active. If not Active, test the signal circuit for a short to voltage or and open/high resistance. If 7. If all the circuits test normal, test or replace the DIC switch assembly. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Driver Information Display Switch Replacement (without RPO SLT) or Driver Control Module References for IPC replacement, setup, and programming
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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