DIAGNOSIS FUNCTION



ENGINE WARNING LAMP (CHECK ENGINE LAMP)



ENGINE WARNING LAMP INSPECTION ITEMS


caution The engine warning lamp continuously illuminates when the engine-ECU malfunctions.
Code No.
Diagnosis item
P0031
Oxygen sensor (front) heater circuit low input <EURO2>
P0032
Oxygen sensor (front) heater circuit high input <EURO2>
P0131
Oxygen sensor (front) circuit low voltage <EURO2>
P0132
Oxygen sensor (front) circuit high voltage <EURO2>
P0350
Ignition coil primary circuit malfunction <EURO2>
P0500*1
Vehicle speed signal system <4WD>
U0121*1
ABS-ECU/ASTC-ECU time-out <4WD>
note After the engine-ECU has detected a malfunction, the engine warning lamp illuminates when the engine is next turned on and the same malfunction is re-detected. However, for items marked with a "*1" in the diagnosis code number column, the engine warning lamp illuminates only on the first detection of the malfunction.

FAIL-SAFE AND BACKUP FUNCTION



List of fail-safe and backup function items
Code No.
Diagnosis item
Control content during malfunction
P0350
Ignition coil primary circuit malfunction <EURO2>
Fuel is cut for cylinder with ignition coil malfunction.
U0114
4WD-ECU time-out <4WD>
Alleviates engine output torque restriction.