Diagnostic Trouble Code Definitions

NOTE: To diagnose trouble codes, see DIAGNOSTIC TESTS .

DIAGNOSTIC TROUBLE CODE DEFINITIONS

DTC

Description

Comments

No Distributor Reference Signal

⁽¹⁾

Right O2 Sensor Not Ready

⁽¹⁾⁽⁸⁾

Shorted Coolant Sensor Circuit

⁽¹⁾⁽⁷⁾

Open Coolant Sensor Circuit

⁽²⁾

Charging System Voltage Out Of Range

⁽¹⁾⁽⁸⁾

Left O2 Sensor Not Ready

⁽²⁾

Shorted Fuel Pump Circuit

⁽²⁾

Open Fuel Pump Circuit

⁽²⁾

Fuel Fuse Blown

⁽²⁾

Shorted TPS Circuit

⁽¹⁾

Open TPS Circuit

⁽¹⁾

EST Circuit Problem

⁽¹⁾⁽⁵⁾

Speed Sensor Circuit Problem

⁽¹⁾

Shorted Throttle Switch Circuit

⁽¹⁾

Open Throttle Switch Circuit

⁽¹⁾

RPM Error To Great

⁽¹⁾

Shorted MAP Sensor Circuit

⁽¹⁾

Open MAP Sensor Circuit

⁽¹⁾

MAP Signal To High

⁽¹⁾

Shorted MAT Sensor Circuit

⁽¹⁾

Open MAT Sensor Circuit

⁽¹⁾

VCC Engagement Problem

⁽¹⁾⁽⁶⁾

Open Power Steering Pressure Circuit

⁽¹⁾

No Cam Sensor Signal

⁽¹⁾

Left O2 Sensor Lean

⁽¹⁾⁽⁸⁾

Left O2 Sensor Rich

⁽¹⁾⁽⁸⁾

Right O2 Sensor Lean

⁽¹⁾⁽⁸⁾

Right O2 Sensor Rich

⁽¹⁾⁽⁸⁾

Left To Right Bank Fueling Imbalance

⁽¹⁾

ECM To BCM Data Problem

⁽¹⁾

Second Gear Pressure Switch

⁽⁴⁾

ECM Memory Reset

⁽⁴⁾

Distributor Signal Interrupted

⁽⁴⁾

TPS Out Of Adjustment

⁽⁴⁾

PASS Key Anti - Theft System

⁽³⁾

Cruise Not In Drive

⁽⁴⁾

Cruise Vent Solenoid Circuit

⁽⁴⁾

Cruise Vacuum Solenoid Circuit

⁽⁴⁾

Set Speed/Vehicle Speed Difference To High

⁽⁴⁾

Acceleration To High Cruise Engaged

⁽⁴⁾

Cruise Servo Sensor Failure

⁽⁴⁾

Cruise Engine RPM To High

⁽⁴⁾

Cruise Set/Coast Or Resume/Accel Switch Shorted

⁽⁴⁾

⁽¹⁾	Turns on "ENGINE CONTROL SYSTEM FAULT" light.

⁽²⁾	Displays "SERVICE SOON" message on CCDIC.

⁽³⁾	Does no turn on any telltale light or display any message.

⁽⁴⁾	Does not turn on any telltale light or display any message.

⁽⁵⁾	Causes system to operate on bypass spark.

⁽⁶⁾	Disengages VCC for entire ignition cycle.

⁽⁷⁾	Forces Cooling Fans on full speed.

⁽⁸⁾	Enables Canister Purge, and disables closed loop only if a problem is detected.