Trouble Code Identification Charts

TROUBLE CODE IDENTIFICATION

Code No.

System Affected

Probable Cause

RPM Signal

Distributor Or Ckt, Starter Ckt, ECU

RPM Signal

Distributor Or Ckt, Starter Ckt, ECU

Ignition Signal

Ignitor Or Ckt To ECU, ECU

Electronic Controlled Transaxle Signal

Transaxle ECU Or Ckt

Main Oxygen Sensor Signal

Oxygen Sensor Or Circuit, ⁽¹⁾ Oxygen Sensor Heater, ECU

Coolant Temp Sens Signal

Coolant Temp Sens Or Ckt, ECU

24 ⁽²⁾

Intake Air Temp Sens Signal

Intake Air Temp Sens Or Ckt, ECU

Lean Air/Fuel Mixture

Loose Ground, Injector Or Ckt, Oxygen Sens Or Ckt, Fuel Pressure, Ignition Sys, Coolant Temp Sens, ⁽³⁾ Airflow Meter/Vacuum Sens, ECU

26 ⁽⁵⁾

Rich Air/Fuel Mixture

Loose Ground, Injector Or Ckt, Oxygen Sens Or Ckt, Fuel Pressure, Cold Start Injector Or Ckt, ⁽³⁾ Airflow Meter/Vacuum Sens, Compression Pressure, Coolant Temp Sens, ECU

27 ⁽⁴⁾⁽⁵⁾

Sub-Oxygen Sens Signal

Sub-Oxygen Sens Or Ckt, ECU

31 (1.6L, 2.2L)

⁽³⁾ Vacuum Sens Signal

Vacuum Sens Or Ckt, ECU

31 (2.0L) ⁽⁶⁾

⁽³⁾ Airflow Meter Signal

Airflow Meter Or Ckt, ECU

32 ⁽⁶⁾

Airflow Meter Signal

Airflow Meter Or Ckt, ECU

34 ⁽⁶⁾

Turbocharger Pressure Sens

Turbocharger Pressure Sens Or Ckt, ECU

35 ⁽⁶⁾

Turbocharger Pressure Sens

Turbocharger Pressure Sens Or Ckt, ECU

41 (1.6L) ⁽²⁾

Throttle Position Sens Signal

Throttle Position Sens Or Ckt, ECU

41 (2.0L) ⁽²⁾

Throttle Position Sens Signal

Throttle Position Sens Or Ckt, ECU

41 (2.2L) ⁽²⁾

Throttle Position Sens Signal

Throttle Position Sens Or Ckt, ECU

42 ⁽⁷⁾

Vehicle Speed Sens Signal

Vehicle Speed Sens Or Ckt, ECU

43 ⁽⁷⁾

Starter Signal

Starter Signal Ckt, Ignition Switch Or Ckt, Main Relay, ECU

51 ⁽⁷⁾

Switch Condition Signal

A/C Switch Ckt, Neutral/Start Switch Or Ckt, TPS Or Ckt, ECU

52 ⁽⁶⁾

Knock Sens Signal

Knock Sens Or Ckt, ECU

53 ⁽⁶⁾

Knock Sens Ctrl (ECU)

ECU

71 ⁽⁸⁾

EGR Sys Malfunction

EGR Sys, EGR Temp Sens Or Ckt, EGR-VSV, ECU

⁽¹⁾	Used only on 3S-GTE and 4A-FE.

⁽²⁾	CHECK ENGINE light comes on only for Calif. models.

⁽³⁾	Airflow meter used on 3S-GTE. Vacuum sensor used on others.

⁽⁴⁾	Used only on 5S-FE.

⁽⁵⁾	Used only on Calif. models.

⁽⁶⁾	Used only on 3S-GTE.

⁽⁷⁾	CHECK ENGINE light will not come on when code is set.

⁽⁸⁾	Used on all 3S-GTE, and on Calif. 4A-FE and 5S-FE models.