On-Board Diagnostics
WARNING: This page is about a different car, the 2003 Saab 9-3 and 2002 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.
Type of diagnosis:
- Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.
Enable criteria:
- General condition for this diagnostic trouble code: Atmospheric pressure must exceed 72 kPa as well as coolant and intake air temperature must exceed -7°C.
- Test 1: Charge air control regulating air mass per combustion.
- Test 2: Throttle control regulating air mass per combustion.
Fault criteria:
- Test 1: Current air mass per combustion is 100 mg/c higher than requested. Charge air control valve PWM has dropped to lowest possible.
- Test 2: Charge air pressure exceeding 200 kPa. Throttle position reduced more than permitted.
Dependents:
System reaction to a fault:
- Air mass per combustion limited to 600 mg/c.
OK report:
- Engine running for longer than 60 sec. Charge air control valve PWM has exceeded 10 % on one occasion. Engine speed above 2500 RPM. Charge air control governing air mass per combustion. Current air mass per combustion differs less than 50 mg/c from requested. Or. Engine running for longer than 60 sec. Charge air control valve PWM has exceeded 10 % on one occasion. Engine speed 2000-3500 RPM. Requested air mass per combustion exceeding 650 mg/c. Throttle control governing air mass per combustion. Charge air pressure below 160 kPa. Current air mass per combustion differs less than 50 mg/c from requested.
Fault handling: (For more information, see FAULT HANDLING III, OTHER EMISSION-RELATED COMPONENTS AND FUNCTION ).
- Type III.