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Trouble Code Definition

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

Code Affected Circuit Probable Cause
12  Mass Airflow Sensor Not Within Range
14  Engine Coolant Temperature Sensor Open Or Short Circuit
16  Air Temperature Sensor Not In Operating Range
17  Throttle Position Sensor Open Or Short Circuit
18  TPS/Mass Airflow Sensor Signal Resistance Low At WOT
19  TPS/Mass Airflow Sensor Signal Resistance High At Idle
22  Heated O2 Sensor/Fuel Pump Relay Voltage Not Within Range
23  Fuel Control Rich Fuel Mixture
24  Ignition Amplifier Voltage Not Within Range
26  Air Leak, Running Lean Air Leak/Lean Fuel Mixture
29  Powertrain Control Module Internal Fault
33  Fuel Injector Voltage Not Within Range
34  Fuel Injector Faulty Injector Indicated
37  EGR Solenoid Valve Voltage Not Within Range
39  EGR Function Faulty System Operation
44  Heated Oxygen Sensor Fuel Mixture Rich Or Lean
46  Idle Air Control Valve (Coil 1) Voltage Not Within Range
47  Idle Air Control Valve (Coil 2) Voltage Not Within Range
48  Idle Air Control Valve Position Not Within Specification
66  Air Injection Pump Relay Incorrect Signal
68  Speed Sensor Incorrect Signal Voltage
69 (1) Park/Neutral Position Switch Engine Cranks In Drive
69 (2) Park/Neutral Position Switch Engine Cranks In Drive
89  EVAP Canister Purge Control Valve Volts Not Within Range
(1) XJ6 only.
(2) XJS only.
DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

Code Affected Circuit Probable Cause
13  Manifold Absolute Pressure (MAP) Sensor Not Within Range
14  Engine Coolant Temperature Sensor Open Or Short Circuit
16  Intake Air Temperature Sensor Not In Operating Range
17  Throttle Position Sensor Not In Operating Range
18  TPS/MAP Sensor Signal Resistance Low At WOT
19  TPS/MAP Sensor Signal Resistance High At Idle
23  Fuel Control Rich Fuel Mixture
34  Fuel Injector (Right Bank) Faulty Injector Indicated
36  Fuel Injector (Left Bank) Faulty Injector Indicated
44  Heated O2 Sensor (Right Bank) Fuel Mixture Rich Or Lean
45  Heated O2 Sensor (Left Bank) Fuel Mixture Rich Or Lean
49  Power Resistor Faulty Power Resistor
67  Secondary Air Injection System Faulty Secondary Air Injection System
77  RPM Signal No RPM To PCM
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