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The history DTC clears after 40 malfunction-free warm-up cycles. Reference Information Schematic Reference Instrument Cluster Schematics 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 Ignition ON, verify the scan tool Fuel Tank Level Remaining parameter is between 4-98 percent. Circuit/System Testing 1. Ignition OFF, disconnect the harness connector at the secondary fuel level sensor. 2. Ignition OFF, test for less than 1 ohm between the low reference circuit terminal B and ground. If greater than the specified range, test the low reference circuit for a short to voltage 3. Ignition ON, install a 3-amp fused jumper wire between the secondary signal circuit terminal C and the low reference circuit terminal B. Verify the scan tool Fuel Tank Level
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
If less than the specified range, test the secondary signal circuit for a short to voltage 4. If all circuits test normal, test or replace the secondary fuel level sensor. Component Testing 1. Ignition OFF, remove the secondary fuel level sender. 2. While sweeping the fuel level sensor through its full range of motion, test for a minimum resistance value of less than 41 ohms and a maximum value greater than 119 ohms between If not within the specified range, replace the secondary fuel level sensor. Repair Procedures Perform the Diagnostic Repair Verification after completing the diagnostic procedure. Fuel Level Sensor Replacement (Extended Cab w/26 Gal Tank) or Fuel Level Sensor Fuel Level Sensor Replacement (15 Reg Cab w/26 gal Tank) or Fuel Level Sensor Fuel Level Sensor Replacement (Cab/Chassis - Rear Tank) for the 6.6L engine Control Module References for ECM replacement, setup, and programming SYMPTOMS - DISPLAYS AND GAGES 1. Perform the Diagnostic System Check - Vehicle , before using the Symptom Tables in order to verify that all of the following are true: There are no DTCs set. The control modules can communicate via the serial data link. 2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following: IMPORTANT: The following steps must be completed before using the symptom tables.
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Instrument Cluster Description and Operation Indicator/Warning Message Description and Operation Driver Information Center (DIC) Description and Operation Audible Warnings Description and Operation Visual/Physical Inspection Inspect for aftermarket devices which could affect the operation of the Instrument Cluster or Inspect the easily accessible or visible system components for obvious damage or conditions Inspect for proper fluid level. Intermittent Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Symptom List Refer to a symptom diagnostic procedure from the following list in order to diagnose the Gages and Odometer Instrument Cluster Inoperative Engine Coolant Temperature Gage Inaccurate or Inoperative Fuel Gage Inaccurate or Inoperative (Single Tank) or Fuel Gage Inaccurate or Hourmeter Inaccurate or Inoperative Speedometer and/or Odometer Inaccurate or Inoperative Tachometer Inaccurate or Inoperative Volt Gage Inaccurate or Inoperative Indicators Compass Malfunction (Mirror) Engine Oil Pressure Indicator Malfunction
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Door Ajar Indicator Malfunction (w/AN3) or Door Ajar Indicator Malfunction (w/o Four-Wheel Drive Indicator Always On for the MP 1222/1225/1226-NQG transfer case Four-Wheel Drive Indicator Inoperative for the MP 1222/1225/1226-NQG transfer case Transfer Case Shift Control Switch Inoperative for the MP 1625/1626-NQF transfer Transfer Case Shift Control Switch Indicator Always On - Two or More for the MP Transfer Case Shift Control Switch Indicator Inoperative - One or More for the MP Service Indicator Always On for the MP 1625/1626-NQF transfer case Transfer Case Shift Control Switch Indicator Always On - Two or More for the MP Transfer Case Shift Control Switch Indicator Inoperative - One or More for the MP Service Indicator Always On for the MP 3023/3024-NQH transfer case Brake Warning Indicator Malfunction ABS Indicator Malfunction StabiliTrak Indicator Malfunction Traction Off Indicator Malfunction Charge Indicator Malfunction Water-in-Fuel Lamp Always On Malfunction Indicator Lamp (MIL) Diagnosis for the 4.3L engine Malfunction Indicator Lamp (MIL) Diagnosis for the 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L Malfunction Indicator Lamp (MIL) Diagnosis for the 6.6L (LMM) engine Tow/Haul Switch/Indicator Always On or Inoperative for the 4L60-E/4L65-E/4L70-E Tow/Haul Switch/Indicator Always On or Inoperative for the 6L50/6L80/6L90 Low Washer Fluid Indicator Malfunction High Beam Indicator Malfunction Turn Signal Lamps and/or Indicators Malfunction
2008 Chevrolet Silverado 1500 2008 ACCESSORIES & EQUIPMENT Displays and Gages - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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