GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 Sierra - 2WD 🢒 General Information 🢒 Vibration Diagnosis and Correction 🢒 Symptoms - Displays and Gages

Important: The following steps must be completed before using the symptom tables.

  1. Perform the Diagnostic System Check - Vehicle , before using the Symptom Tables in order to verify that all of the following are true:
    2. • 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:
    3. •  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 Audible Warning Systems. Refer to Checking Aftermarket Accessories .
    • Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.
    • Inspect for proper fluid level.

Intermittent

Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections .

Symptom List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

Gages and Odometer

    •  Instrument Cluster Inoperative
    •  Engine Coolant Temperature Gage Inaccurate or Inoperative
    •  Fuel Gage Inaccurate or Inoperative
    •  Hourmeter Inaccurate or Inoperative
    •  Speedometer and/or Odometer Inaccurate or Inoperative
    •  Tachometer Inaccurate or Inoperative
    •  Volt Gage Inaccurate or Inoperative

Indicators

    •  Change Engine Oil Indicator Always On
    •  Door Ajar Indicator Malfunction
    •  Engine Oil Pressure Indicator Always On
    •  Low Engine Oil Level Indicator Always On
    •  Mirror Compass Display Inoperative or Inaccurate
    •  Mirrors - Temperature Display Inaccurate
    •  Mirrors - Temperature Displays SC or OC
    •  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 case
    •  Transfer Case Shift Control Switch Indicator Always On - Two or More for the MP 1625/1626-NQF transfer case
    •  Transfer Case Shift Control Switch Indicator Inoperative - One or More for the MP 1625/1626-NQF transfer case
    •  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 3023/3024-NQH transfer case
    •  Transfer Case Shift Control Switch Indicator Inoperative - One or More for the MP 3023/3024-NQH transfer case
    •  Service Indicator Always On for the MP 3023/3024-NQH transfer case
    •  Brake Warning Indicator Malfunction
    •  ABS Indicator Always On
    •  ABS Indicator Inoperative
    •  Stability System Caution Indicator Always On
    •  Stability System Caution Indicator Inoperative
    •  Charge Indicator Always On
    •  Charge Indicator Inoperative
    •  Malfunction Indicator Lamp (MIL) Diagnosis for the 4.3L engine
    •  Malfunction Indicator Lamp (MIL) Diagnosis for the 4.8L, 5.3L, 6.0L, and 6.2L engines
    •  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 automatic transmission
    •  Tow/Haul Switch/Indicator Always On or Inoperative for the 6L50/6L80/6L90 automatic transmission
    •  Low Washer Fluid Indicator Malfunction
    •  Fog Lamp Indicator Inoperative
    •  High Beam Indicator Always On
    •  High Beam Indicator Inoperative
    •  Turn Signal Lamps and/or Indicators Always On or Flashing
    •  Turn Signal Lamps and/or Indicators Inoperative
    •  Air Bag Indicator Circuit Malfunction
    •  Passenger Presence System Indicator Circuit Malfunction
    •  Seat Belt Indicator Circuit Malfunction - Driver
    •  Seat Belt Indicator Circuit Malfunction - Passenger
    •  Security Indicator Malfunction

Instrument Cluster Dimming

    •  Interior Backlighting Does Not Dim
    •  Interior Backlighting Inoperative

Driver Information Center (DIC)

Driver Information Center (DIC) Switch Inoperative

Audible Warnings

    •  Chime Always On
    •  Chime Inoperative