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Circuit/System Description The driver information switches are normally open momentary switches. Power is provided to the Conditions for Running the DTC The ignition is in ACCESSORY or RUN. Conditions for Setting the DTC The IPC detects that the DIC switch is stuck. The IPC detects that the DIC switch signal circuit is shorted to battery. Action Taken When the DTC Sets The IPC ignores the DIC switch inputs. Conditions for Clearing the DTC The DTC becomes history when the conditions for setting the DTC are no longer present. The history DTC clears after 40 malfunction-free warm-up cycles. The engine control module (ECM) receives a clear code command from the scan tool. Diagnostic Aids When the DIC switches are stuck, only the TRIP/FUEL switch functions correctly. When Only the DIC signal circuit can be diagnosed as shorted to battery. Reference Information 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
Schematic Reference Instrument Cluster Schematics Connector End View Reference Component Connector End Views Description and Operation Driver Information Center (DIC) 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 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
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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. Steering Wheel Control Switch Assembly Replacement Control Module References for the IPC replacement, setup, and programming DTC P0381 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. DTC Descriptor DTC P0381 Wait To Start Lamp Control Circuit Diagnostic Fault Information Circuit/System Description Ignition voltage is supplied directly to the wait to start indicator. The engine control module Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance Wait To Start Signal P0381 P0381 P0381 -
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
component ON, the voltage of the control circuit should be low, near zero volts. When the ECM Conditions for Running the DTC The ignition voltage is greater than 6 volts but less than 18 volts. Conditions for Setting the DTC The ECM detects that the commanded state of the driver and the actual state of the control The condition must be present for a minimum of 5 seconds. Action Taken When the DTC Sets The ECM stores the DTC information in memory. The ECM records the operating conditions at the time the DTC sets. The ECM displays the Conditions for Clearing the DTC The history DTC clears after 40 malfunction-free warm-up cycles. The DTC becomes history when the conditions for setting the DTC are no longer present. The ECM receives the clear code command from the scan tool. Diagnostic Aids Using the Failure Records data may help locate an intermittent condition. If you cannot duplicate The wait to start indicator illuminates only with the ignition ON and the engine OFF. The wait to Reference Information Schematic Reference
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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