For 1990-2009 cars

Table 1: | I/P Cluster Inputs

Symptom | Action
--- | ---
ABS telltale at all times On | Refer to ABS diagnostics in Brake Service Manual.
ABS telltale does not illuminate |

• | Perform the bulb check.

• | If the ABS telltale does not illuminate, replace the cluster.

Speedometer inaccurate |

• | Connect a scan tool, lift the drive wheels, start the engine and place the shifter in drive.

• | If the scan tool does not display vehicle speed, refer to Engine Emission Controls.

• | If the scan tool does display vehicle speed, perform the I/P Cluster Lamp and Gage test with a scan tool.

• | If the speedometer does not sweep, replace the cluster.

Speedometer Inoperative | Check for DTCs.
Odometer dark, not dimming, or displaying incorrectly | See Chart 1-3.
Tachometer Inaccurate |

• | Connect a scan tool and start the engine.

• | If the scan tool does not display engine RPM, refer to Engine Emission Controls.

• | If the scan tool does display the engine RPM, perform the I/P cluster lamp and gage test with a scan tool.

• | If the tachometer does not sweep, replace the cluster.

Coolant Temperature Gage Inoperative |

• | If the coolant gage is inaccurate refer to the BCM section of scan tool and read coolant gage position from BCM

• | Connect a scan tool and start the engine.

• | If the scan tool does not display coolant temperature, refer to Engine Emission Controls.

• | If the scan tool does display coolant temperature, perform the I/P cluster lamp and gage test with a scan tool.

• | If the coolant temperature gage does not sweep, replace the cluster.

Fuel Gage Inoperative |

• | If the coolant gage is inaccurate refer to the BCM section of scan tool for the gage position from the BCM

• | Connect a scan tool with the ignition On.

• | If the scan tool does not display the fuel level, refer to Engine Fuel System.

• | If the scan tool does display the fuel level, perform the I/P cluster lamp and gage test with a scan tool.

• | If the fuel gage does not sweep, replace the cluster.

Air Bag Readiness Telltale does not Illuminate |

• | Perform the bulb check.

• | If the air bag readiness telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate. Refer to SIR Diagnosis in SIR.

Air Bag Readiness telltale On at all times | Refer to SIR Diagnosis in SIR.
Charging System telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the charging system telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate. Refer to Starting and Charging in Engine.

Charging System telltale On at all times | Refer to Electrical in Engine.
Low Traction telltale On at all times | Refer to ABS Diagnostics in Brakes.
Low Traction telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the low traction telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate . Refer to ABS Diagnostics in Brakes.

Brake System Warning telltale On at all times | Refer to ABS Diagnostics in Brakes.
Brake System Warning telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the brake system warning telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate. Refer to ABS Diagnostics in Brakes.

Engine Coolant Temperature Warning telltale On at all times | Refer to Engine Cooling in Engine Mechanical.
Engine Coolant Temperature Warning telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the engine coolant temperature warning telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate. Refer to Engine Cooling in Engine Mechanical.

Daytime Running Lamps (DRL) telltale On at all times | Refer to Lighting.
Daytime Running Lamps (DRL) telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the DRL telltale does not illuminate, remove and inspect the bulb.

• | If the bulb is not good, replace the bulb. If good, replace the cluster.

• | If the telltale does illuminate. Refer to Lighting.

High Beam telltale On at all times | Refer to Lighting.
High Beam telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the high beam telltale does not illuminate, remove and inspect the bulb.

• | If the bulb is not good, replace the bulb. If good, replace the cluster.

• | If the telltale does illuminate. Refer to Lighting.

Low Coolant Warning telltale On at all times | Refer to Engine Cooling in Engine Mechanical.
Low Coolant Warning telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the low coolant warning telltale does not illuminate, replace the cluster.

Low Fuel telltale On at all times | Refer to Fuel System in Engine Controls.
Low Fuel telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the low fuel telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate. Refer to Fuel System in Engine.

Washer Fluid Low telltale On at all times | Refer to Wiper/Washer.
Washer Fluid Low telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the washer fluid low telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate. Refer to Wiper/Washer.

Change Oil Soon telltale On at all times | Refer to Lubrication in Engine Mechanical.
Change Oil Soon telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the change oil soon telltale does not illuminate, replace the cluster.

Engine Oil Pressure telltale On at all times | Refer to Lubrication in Engine Mechanical.
Engine Oil Pressure telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the engine oil pressure telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate. Refer to Lubrication in Engine.

Reduced Power telltale On at all times | Refer to Engine Controls.
Reduced Power telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the reduced power telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate. Refer to Engine Controls.

Security telltale On at all times | Refer to Locks and Security
Security telltale does not illuminate | Refer to Locks and Security.
Decklid/Liftgate Ajar telltale On at all times | Refer to Locks and Security.
Decklid/Liftgate Ajar telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the decklid/liftgate ajar telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate. Refer to Locks and Security.

Left or Right Turn indicator On at all times or does not illuminate | Refer to Lighting.
(MIL) Service Engine Soon telltale On at all times | Refer to Engine Controls.
(MIL) Service Engine Soon telltale does not illuminate |

• | Inspect the indicator visually by turning the ignition key to RUN.

• | If the MIL does not illuminate, replace the cluster.

Service (wrench) telltale On at all times | Check for DTCs and refer to appropriate system section.
Service (wrench) telltale does not illuminate |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the service (wrench) telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate, check for DTCs and refer to appropriate system section.

Shift Up telltale On at all times |

• | Perform the I/P cluster lamp and gage test with a scan tool.

• | If the shift up telltale does not illuminate, replace the cluster.

• | If the telltale does illuminate, refer to diagnostic section of Manual Transaxle.

Cluster illumination inoperative or on at all times | Refer to Lighting.
Safety Belt Reminder telltale On at all times | Refer to Safety Belt in Restraints.
Safety Belt Reminder telltale does not illuminate | Refer to Safety Belt in Restraints.
Multiple indicators are dim with key On |

• | Check for open BCM/CLUSTER 15A fuse.

• | Check for open in CKT 2540 to the cluster.

#### I/P Cluster Inputs

Telltale, Gage or Lamp | Input to BCM | Input to Cluster
--- | --- | ---
Direct Wire | Serial Data | Direct Wire | Serial Data
Antilock Brake System (ABS) | EBTCM | -- | -- | BCM
Low Traction | EBTCM | -- | -- | BCM
Air Bag Readiness | -- | -- | -- | SDM
Brake System Warning | X | -- | -- | BCM
Engine Coolant Temperature Warning | -- | ECM (L81) PCM (L61) | -- | BCM
Daytime Running Lamps (DRL) | X | -- | -- | BCM
Charging System | -- | ECM | -- | BCM
High Beam | X | -- | -- | BCM
Left Turn Signal | -- | -- | X | --
Low Coolant Warning | X | -- | -- | BCM
Low Fuel | -- | ECM (L81) PCM (L61) | -- | BCM (L81) PCM (L61)
Washer Fluid Low | X | -- | -- | BCM
(MIL) Service Engine Soon | -- | ECM | -- | BCM (L81) PCM (L61)
Change Oil Soon | -- | ECM (L81) PCM (L61) | -- | BCM
Engine Oil Pressure | -- | ECM | -- | BCM (L81) PCM (L61)
Reduced Power (V6 Only) | -- | ECM | -- | BCM
Right Turn Signal | -- | -- | X | --
Safety Belt Reminder | -- | -- | -- | SDM
Security | X | -- | BCM | --
Service (Wrench) | -- | ECM (L81) PCM (L61) | -- | BCM
Decklid/Liftgate Ajar | X | -- | -- | BCM
Shift Up | -- | -- | -- | PCM
Speedometer | -- | ECM (L81) PCM (L61) | -- | BCM
Odometer | -- | ECM (L81) PCM (L61) | -- | BCM
Tachometer | -- | ECM (L81) PCM (L61) | -- | BCM
Fuel Gage | -- | ECM (L81) PCM (L61) | -- | BCM
Coolant Gage | -- | ECM (L81) PCM (L61) | -- | BCM
Illumination Lamps | Direct wire from the I/P dimmer switch | BCM | --
Odometer Backlighting | Direct wire from the I/P dimmer switch and headlamp switch | -- | BCM