Diagnostic Codes

Check suspect components in order given. See COMPONENT TESTING. Checks consist mainly of a visual inspection and continuity checks. For diagnostic flow charts, see DIAGNOSTIC CHARTS.

• Code 24  Open or short in sub-throttle actuator circuit.
• Code 25  Step motor does not move to a position commanded by ECU.
• Code 26  Sub-throttle valve does not move even when the sub-throttle valve is controlled to fully open position by ECU.
• Code 27  Sub-throttle valve return spring breakage.
• Code 31  Right front wheel speed sensor signal malfunction.
• Code 32  Left front wheel speed sensor signal malfunction.
• Code 33  Right rear wheel speed sensor signal malfunction.
• Code 34  Left rear wheel speed sensor signal malfunction.
• Code 41  Low battery voltage or abnormally high battery voltage.
• Code 43  Malfunction in ABS or TRAC control system. If a malfunction is detected, TRAC OFF indicator light is on.
• Code 44  Open or short in NE signal circuit.
• Code 45  Open in main throttle position sensor circuit.
• Code 46  Short in main throttle position sensor circuit. Indicator light does not light up even if an error is detected.
• Code 47  Sub-throttle position sensor circuit malfunction.
• Code 48  Short in sub-throttle position sensor circuit.
• Code 49  Open or short in engine communication circuit (TR2 circuit).
• Code 51  Engine and ECT system malfunction. If a malfunction is detected, TRAC OFF indicator light is on.
• Code 61  ABS/TRAC ECU communication circuit malfunction.