1992 Jaguar XJS 2D ConvertibleFACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code Definitions

TROUBLE CODE IDENTIFICATION

Code  System Affected  Probable Cause 
11  Idle Potentiometer Not In Operating Range
13  Manifold Absolute Pressure (MAP) Sensor Not In Operating Range
14  Coolant Temp. Sensor Not In Operating Range
16  Air Temperature Sensor Not In Operating Range
17  Throttle Potentiometer Not In Operating Range
18  Throttle Potentiometer Low Throttle Potentiometer Signal At High Airflow
19  Throttle Potentiometer High Throttle Potentiometer Signal At Low Airflow
23  Fuel Control Both Banks Rich Or Lean
29  Electronic Control Module Self Check
34  Fuel Injector Circuit (Bank A) Or Air Leak Faulty Injector Or Air Leak Indicated
36  Fuel Injector Circuit (Bank B) Or Air Leak Faulty Injector Or Air Leak Indicated
44  Oxygen Sensor
(Bank A)		 Rich Or Lean Condition
45  Oxygen Sensor
(Bank B)		 Rich Or Lean Condition
49  Power Resistors Voltage Low Through Resistor
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.