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Trouble Code Identification

TROUBLE CODE IDENTIFICATION

Code System Affected (1) Normal Mode (1) Test Mode Probable Cause
12  RPM Signal ON N/A Distributor, Starter Or Circuit, ECM
13  RPM Signal ON ON Distributor Or Circuit, ECM
14  Ignition Signal ON N/A Ignitor Or Circuit To ECM
16 (2) (Non- Turbo) A/T Control Signal ON N/A ECM Or Circuit
21  (Turbo) Oxygen Sensor Signal ON (3) Oxygen Sensor Or Circuit, ECM
21  (Non- Turbo) Oxygen Sensor Signal ON N/A Oxygen Sensor Or Circuit, ECM
22  Engine Coolant Temperature Sensor Signal ON ON Engine Coolant Temp. Sensor Or Circuit, ECM
24  Intake Air Temperature Sensor Signal ON (4) ON Intake Air Temp. SensorOr Circuit, ECM
25  Lean Air/Fuel Mixture ON ON Loose Ground, Injector Or Circuit, Oxygen Sensor Or Circuit, Fuel Pressure, IgnitionSystem, Engine Coolant Temp. Sensor, Airflow Meter, MAP Sensor, ECM
26 (5) (Non- Turbo) Rich Air/Fuel Mixture ON ON Loose Ground, Injector Or Circuit, Oxygen Sensor Or Circuit, Fuel Pressure, Engine Coolant Temp. Sensor, MAP Sensor Compression Pressure, ECM
26  (Turbo) Rich Air/Fuel Mixture ON ON Loose Ground, Injector Or Circuit, Oxygen Sensor Or Circuit, Fuel Pressure, Engine Coolant Temp. Sensor, MAP Sensor Compression Pressure, ECM
27 (5) (Non- Turbo) Sub-Oxygen Sensor Signal ON ON Sub-Oxygen Sensor Or Circuit, ECM
31  (Non- Turbo) MAP Sensor Signal ON ON MAP Sensor Or Circuit, ECM
31  (Turbo) Airflow Meter Signal ON ON Airflow Meter Or Circuit, ECM
32  (Turbo) Airflow Meter Signal ON ON Airflow Meter Or Circuit, ECM
34  (Turbo) Turbocharger Pressure/MAP Sensor ON (4) N/A MAP Sensor Or Circuit, ECM
35  (Turbo) Turbocharger Pressure/MAP Sensor ON ON MAP Sensor Or Circuit, ECM
41  Throttle Position Sensor Signal ON (4) ON Throttle Position Sensor Or Circuit, ECM
42  Vehicle Speed Sensor Signal OFF OFF Vehicle Speed Sensor Or Circuit, ECM
43  Starter Signal N/A OFF Starter Signal Circuit,Ignition Switch Or Circuit, ECM
51  Switch Condition Signal N/A OFF A/C Switch Circuit, Park/Neutral Switch Or Circuit, TPS Or Circuit, ECM
52  Knock Sensor Signal ON N/A Knock Sensor Or Circuit, ECM
53  (Turbo) Knock Control Signal ON N/A ECM
71  (Non- Turbo) EGR System Malfunction ON ON EGR System, EGR Temp. Sensor Or Circuit, EGR-VSV, ECM
71 (5) (Turbo) EGR System Malfunction ON (4) ON (4) EGR System, EGR Temp. Sensor Or Circuit, EGR-VSV, ECM
(1) ON indicates MIL on instrument panel will be illuminated. N/A indicates item is not included in malfunction diagnosis when using this mode. OFF indicates MIL on instrument panel will not be illuminated even if malfunction is detected.
(2) Applies only to models with electronic-controlled automatic transaxle.
(3) The MIL will be illuminated if problem exists in oxygen sensor circuit. The MIL will not be illuminated if problem exists in oxygen sensor heater or circuit.
(4) The MIL will be illuminated on California models only.
(5) Applies to California models only.