With California Emissions

The following items may be indicated by the Check Engine/Malfunction Indicator Lamp:


Engine Control Module (ECM) malfunction
Volume Air Flow circuit malfunction
Barometric Pressure circuit malfunction
Intake Air Temperature circuit malfunction
Engine Coolant Temperature circuit malfunction
Throttle Position circuit malfunction
Excessive time to enter closed loop fuel control*
Heated Oxygen circuit malfunction (bank 1 sensor 1)
Heated Oxygen heater circuit malfunction (bank 1 sensor 1)
Heated Oxygen circuit malfunction (bank 1 sensor 2)
Heated Oxygen heater circuit malfunction (bank 1 sensor 2)
Fuel trim malfunction (bank 1)
Injector circuit malfunction - cylinder 1
Injector circuit malfunction - cylinder 2
Injector circuit malfunction - cylinder 3
Injector circuit malfunction - cylinder 4
Random misfire detected*
Cylinder 1 misfire detected*
Cylinder 2 misfire detected*
Cylinder 3 misfire detected*
Cylinder 4 misfire detected*
Crankshaft Position circuit malfunction
Camshaft Position circuit malfunction
Exhaust Gas Recirculation flow malfunction
Warm up catalyst efficiency below threshold (bank 1)
Evaporative emission control system malfunction
Evaporative emission control system purge control valve circuit malfunction
Idle control system malfunction
Closed throttle position switch malfunction
Pulse Generator (PG) assembly malfunction
Solenoid assembly malfunction

NOTES:
1. After the ECM detects a malfunction, the check engine/malfunction indicator lamp illuminates when the engine is next turned on and the same malfunction is re-detected. However, for items marked with an asterisk *, the check engine/malfunction indicator lamp illuminates on the first detection of the malfunction.
2. After the check engine/malfunction indicator lamp illuminates, it will be switched off under the following conditions:
- When the ECM has monitored the powertrain malfunction three times [1] and detected no malfunction.
- For misfiring or a fuel trim malfunction, when driving conditions (engine speed, engine coolant temperature, etc.) are similar to those when the malfunction was first recorded.

CAUTION: If the check engine/malfunction indicator lamp illuminates because of a malfunction of the ECM, transmission between the scan tool and the ECM cannot occur. In this case, the diagnostic trouble code cannot be read.


REMARKS:
[1] In this case, one time indicates from engine start to stop.