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Trouble Code Identification

TROUBLE CODE IDENTIFICATION CHART (1)

Code System Affected Probable Cause
0  ECU No Signal To ECU
1  O2 Sensor O2 Sensor Circuit Problem
3  MAP Sensor MAP Sensor Problem
4  Crank Angle Open/Shorted Signal Circuit
5  MAP Sensor Open/Shorted Signal Circuit
6 (2) Coolant Temperature Sensor Open/Shorted Signal Circuit
7 (2) Throttle Angle Sensor Open/Shorted Signal Circuit
8  Crank Angle Sensor (TDC) Open/Shorted Signal Circuit
9  Crank Angle Sensor (CYL) Open/Shorted Signal Circuit
10  Intake Air Temperature Sensor Problem With Sensor
12  EGR System Faulty EGR Valve (A/T)
13  Atmospheric Pressure Sensor (PA) PA Circuit Problem
14  Electronic Air Control Valve (EACV) Open/Shorted Signal Circuit
15  Ignition Output Signal Open/Shorted Signal Circuit
16  Fuel Injector Open/Shorted Signal Circuit
17 (2) Vehicle Speed Sensor (VSS) Open/Shorted Signal Circuit
18  Ignition Timing Adjustment Open/Shorted Signal Circuit
20 (3) Electrical Load Detector Open/Shorted Signal Circuit
23  Knock Sensor Open/Shorted Signal Circuit
30 (3) A/T FI Signal (A) Open/Shorted Signal Circuit
31 (3) A/T FI Signal (B) Open/Shorted Signal Circuit
41  Oxygen Sensor Heater Open/Shorted Signal Circuit -
43  Fuel Supply System Open/Shorted O2 Circuit
45  Fuel Metering Incorrect Fuel Metering
53  Knock Sensor Open/Shorted Signal Circuit
(1)
If codes other than these are indicated, repeat self-diagnosis. If code(s) reappear, substitute a known good ECU, and recheck codes. If code(s) clear, replace ECU.
(2)
If S4 on automatic transaxle indicator panel also blinks, A/T control unit may also require diagnosis.
(3)
The CHECK ENGINE light will not come on if the malfunction is in the A/T FI or Electrical Load Detector circuit. Fault code will, however, be stored in ECU memory.
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