Home/Saab/9-3/Saab 9-3 II (2002-2008)/Repair manual/Testing & Diagnostics/Trionic T8 Fuel Control System: Maintenance
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Trionic T8 Fuel Control System: Maintenance Saab 9-3 II

Testing & Diagnostics 1 illustration

Pressure sensor, power steering fluid (739)

  1. Informs the ECM when the power steering pressure exceeds 17 bar.
  2. Used to compensate for idle speed.

Power steering fluid pressure sensor (739)

Location: on the top of the servo pump

Scheme 125

Scheme 125: Power steering fluid pressure sensor (739)

Lamp illumination of MIL (Maintenance Indicator Lamp, T8)

Diagnostic trouble codeDiagnostic trouble code nameOBDIIEOBDLOBD
P0030O2S 1 Preheater Circuit Performance Problem111
P0031O2S 1 Preheater Circuit, Open/Short to Ground111
P0032O2S 1 Preheater Circuit, Short to B+111
P0033Charge Air Bypass System Malfunction111
P0034Charge Air Bypass Valve Circuit. Open/Short to Ground.111
P0035Charge Air Bypass Valve Circuit. Short to B+.111
P0036O2S 2 Preheater Circuit Performance Problem111
P0037O2S 2 Preheater Circuit, Open/Short to Ground111
P0038O2S 2 Preheater Circuit, Short to B+111
P0101Mass Air Flow sensor, Performance Problem (Deviation from Calculated Mass Air)113
P0102Mass Air Flow Circuit. Low Input.111
P0103Mass Air Flow Circuit. High Input.111
P0106Manifold Absolute Pressure Sensor Circuit. Performance Problem.111
P0107Manifold Absolute Pressure Sensor Circuit. Open/Short to Ground.111
P0108Manifold Absolute Pressure Sensor Circuit. Short to B+.111
P0112Intake Air Temperature Sensor Circuit. Short to Ground.111
P0113Intake Air Temperature Sensor Circuit. Short to B+ / Open Circuit.111
P0115Engine Coolant Temperature Circuit Problem111
P0116Engine Coolant System, Malfunction111
P0117Engine Coolant Temperature Sensor Circuit. Short to Ground.111
P0118Engine Coolant Temperature Sensor Circuit. Short to B+ / Open circuit.111
P0119Engine Coolant Temperature Circuit Problem111
P0121Throttle Position Sensor 1 Circuit. Out of Range.111
P0122Throttle Position Sensor Circuit 1, Open/Short to Ground111
P0123Throttle Position Sensor Circuit 1, Short to B+111
P0125Excessive Time to Enter Closed Loop Fuel Control.144
P0131O2S Circuit. Low Voltage. Sensor 1.111
P0132O2S Circuit. High Voltage. Sensor 1.111
P0133O2S Circuit. Slow Response. Sensor 1.114
P0134O2S Circuit. No Activity Detected. Sensor 1.111
P0137O2S Circuit. Low Voltage. Sensor 2.111
P0138O2S Circuit. High Voltage. Sensor 2.111
P0140O2S Circuit. No Activity Detected. Sensor 2.111
P0171Long Term Fuel Trim Multiplicative. Max Value, Air/Fuel too Lean.113
P0172Long Term Fuel Trim Multiplicative. Min Value, Air/Fuel too Rich.113
P0201Injector 1 Circuit, Open/Short111
P0202Injector 2 Circuit, Open/Short111
P0203Injector 3 Circuit, Open/Short111
P0204Injector 4 Circuit, Open/Short111
P0221Throttle Position Sensor 2 Circuit. Out of Range.111
P0222Throttle Position Sensor Circuit 2, Open/Short to Ground111
P0223Throttle Position Sensor Circuit 2, Short to B+111
P0236Charge Air Absolute Pressure Sensor Circuit. Performance Problem.111
P0237Charge Air Absolute Pressure Sensor Circuit. Short to Ground / Open.111
P0238Charge Air Absolute Pressure Sensor Circuit. Short to B+.111
P023DManifold Absolute Pressure and Charge Air Absolute Pressure, Plausibility Fault.111
P0244Charge Air Control System, Performance Problem111
P0245Charge Air Control Valve Circuit. Open / Short to Ground.111
P0246Charge Air Control Valve Circuit. Short to B+.111
P0300Random Misfire Detected.1 (1)1 (1)4
P0301Cylinder 1 Misfire Detected.1 (1)1 (1)4
P0302Cylinder 2 Misfire Detected.1 (1)1 (1)4
P0303Cylinder 3 Misfire Detected.1 (1)1 (1)4
P0304Cylinder 4 Misfire Detected.1 (1)1 (1)4
P0313Misfire Detected at Low Fuel Level114
P0325Knock Detection Circuit, No Activity111
P0337Crankshaft Position Sensor. No Input.111
P0339Crankshaft Position Sensor Circuit. Incorrect Signal.111
P0340Ignition Synchronization. Malfunction113
P0420Three Way Catalytic Converter. Malfunction.114
P0441EVAP Purge Valve. Malfunction.144
P0442EVAP. Small Leakage in System.144
P0444EVAP Purge Valve Circuit. Open/Short to Ground111
P0445EVAP Purge Valve Circuit. Short to B+.111
P0446Canister Close Valve Circuit, Malfunction144
P0451EVAP Tank Pressure Sensor. Performance Problem.144
P0452EVAP Tank Pressure Sensor Circuit. Short to Ground.144
P0453EVAP Tank Pressure Sensor Circuit. Open / Short to B+.144
P0455EVAP. Serious Leakage in System.144
P0456EVAP, Very Small Leakage in System144
P0460Fuel Level Sensor Circuit, Performance Problem333
P0461Fuel Level Sensor Circuit, Performance Problem344
P0462Fuel Level Sensor Circuit, Short to Ground333
P0463Fuel Level Sensor Circuit, Open/Short to B+333
P0498Canister Close Valve Circuit. Open / Short to Ground.144
P0499Canister Close Valve Circuit. Short to B+.144
P0501Vehicle Speed, Incorrect Signal111
P0506Idle Speed Control. Idling Speed too Low.144
P0507Idle Speed Control. Idling Speed too High.144
P0532A/C Pressure Sensor Circuit, Open/Short to Ground333
P0533A/C Pressure Sensor Circuit, Short to B+333
P0551Power Steering Pressure Switch Performance Problem333
P0572Brake Switch Circuit, Short to Ground/B+333
P0573Brake Switch Circuit, Open333
P0600T8 was Missing on Bus111
P0601Control Module. Internal fault111
P0602Control Module not Added111
P0604Control Module. Internal fault111
P0606Control Module. Internal fault111
P0607Control Module. Internal fault111
P0610ECU attributes not programmed/Internal fault.111
P0616Starter Relay Circuit, Open/Short to Ground333
P0617Starter Relay Circuit, Short to B+333
P0621Generator L Terminal Circuit, Open333
P0625Generator F terminal Circuit, Open/Short to Ground333
P0626Generator F terminal Circuit, Short to B+333
P0628Fuel Pump Relay Circuit, Short to Ground111
P0629Fuel Pump Relay Circuit, Open/Short to B+111
P0630Control Module not Added111
P0632Control Module not Added111
P0633Control Module not Added222
P0638Throttle Mechanical, Throttle Position Deviation from Demanded111
P06415V Supply Group 1, Short to Ground/B+111
P0646A/C Relay Circuit. Open / Short to Ground.333
P0647A/C Relay Circuit, Short to B+333
P06515V Supply Group 2, Short to Ground/B+111
P0685Main Relay Circuit, Performance Problem111
P0686Main Relay Coil Circuit. Open / Short to Ground.111
P0687Main Relay Coil Circuit. Short to B+.111
P0691Cooling Fan 1 Control Circuit, Open/Short to Ground333
P0692Cooling Fan 1 Control Circuit, Short to B+333
P0693Cooling Fan 2 Control Circuit, Open/Short to Ground333
P0694Cooling Fan 2 Control Circuit, Short to B+333
P0695Cooling Fan 3 Control Circuit, Opn/Short to Ground333
P0696Cooling Fan 3 Control Circuit, Short to B+333
P0704Clutch Switch Input Circuit Malfunction333
P0719Brake Light Switch Circuit. Short to Ground.133
P0724Brake Light Switch Circuit. Open/Short to B+.133
P1131O2S. Switch point - lean. Sensor 1114
P1132O2S. Switch point - rich. Sensor 1114
P1312Ionization Signals Implausible, Sooted Spark plugs114
P1315CDM Not Powered111
P1340Combustion Detection Signals CDM-T8, Open/Short113
P1341Ionization Signal or Trigg, Coil 1 to CDM, Open/Short114
P1342Ionization Signal or Trigg, Coil 2 to CDM, Open/Short114
P1343Ionization Signal or Trigg, Coil 3 to CDM, Open/Short114
P1344Ionization Signal or Trigg, Coil 4 to CDM, Open/Short114
P1350Ignition Coil Trig Random Cylinder, Signal Missing at CDM111
P1351Ignition Coil Trig Cylinder 1 Circuit, Signal Missing at CDM111
P1352Ignition Coil Trig Cylinder 2 Circuit, Signal Missing at CDM111
P1353Ignition Coil Trig Cylinder 3 Circuit, Signal Missing at CDM111
P1354Ignition Coil Trig Cylinder 4 Circuit, Signal Missing at CDM111
P1442EVAP System, Fuel Level Sensor Failure and Small Leak Detected144
P1451EVAP System. Fuel Level Sensor Failure and Pressure Sensor Performance Problem144
P1452EVAP System, Tank Pressure Sensor Value too low144
P1453EVAP System, Tank Pressure Sensor Value too low144
P1455EVAP System, Fuel Level Sensor Failure and Gross Leak Detected144
P1456EVAP System, Fuel Level Sensor Failure and Very Small Leak Detected144
P1492EVAP System, Fuel Level Sensor Failure and Tank Pressure Sensor Value too Low144
P1493EVAP System, Fuel Level Sensor Failure and Tank Pressure Sensor Value too High144
P1523A/C Pressure Sensor Circuit, Open/Short to Ground111
P1606Control Module. Internal fault333
P1609CIM or I Bus ECU's Not Added222
P1610ECU Internal Fault. Security Function Disable333
P1611Control Module Not Added222
P1613CIM Not Added or Missing on Bus222
P1614T8 or CIM Not Added222
P1615T8 or CIM Not Added222
P1616CIM or I Bus ECU's Not Added222
P1619ECU attributes not programmed/Internal fault.333
P1623TCM Missing on BUS111
P1624CIM Missing on BUS333
P1625TCS/ESP Missing on BUS111
P1680Control Module. Internal fault111
P1681Control Module. Internal fault111
P1682Plausibility Fault between voltage feed from +15 and main relay333
P2121Pedal Position Sensor 1 Circuit. Out of Range.111
P2122Pedal Position Sensor Circuit 1. Open Circuit/Short to Ground.111
P2123Pedal Position Sensor Circuit 1. Short to B+.111
P2126Pedal Position Sensor 2 Circuit. Out of Range.111
P2127Pedal Position Sensor Circuit 2. Short to Ground/Open Circuit.111
P2128Pedal Position Sensor Circuit 2. Short to B+.111
P2135Throttle Position Sensor Circuit, Plausibility Fault between Circuit 1 and 2111
P2138Pedal Position Sensor Circuit. Plausibility Fault Between Circuit 1 and 2.111
P2176Throttle Mechanical, Can Not Reach Closed Position111
P2187Long Term Fuel Trim Additive. Max Value, Air/Fuel too Lean.113
P2188Long Term Fuel Trim Additive. Min Value, Air/Fuel too Rich.113
P2195Short Term Fuel Trim. Max Value, Air/Fuel too Lean.333
P2196Short Term Fuel Trim. Min Value, Air/Fuel too Rich.333
P2300Ignition Coil Trig Cylinder 1 Circuit, Short to Ground111
P2301Ignition Coil Trig Cylinder 1 Circuit, Open/Short to B+111
P2303Ignition Coil Trig Cylinder 2 Circuit, Short to Ground111
P2304Ignition Coil Trig Cylinder 2 Circuit, Open/Short to B+111
P2306Ignition Coil Trig Cylinder 3 Circuit, Short to Ground111
P2307Ignition Coil Trig Cylinder 3 Circuit, Open/Short to B+111
P2309Ignition Coil Trig Cylinder 4 Circuit, Short to Ground111
P2310Ignition Coil Trig Cylinder 4 Circuit, Open/Short to B+111
P2500Generator L Terminal Control Circuit, Short to Ground333
P2501Generator L Terminal Control Circuit, Short to B+333
P2535+15 Voltage too High or Internal Fault in Voltage measurement333
P2537+X Circuit, Open/Short to Ground333
(1) Misfiring harmful to catalytic converters in cases where lamp flashes
(1)Misfiring harmful to catalytic converters in cases where lamp flashes

LAMP ILLUMINATION OF MIL (MAINTENANCE INDICATOR LAMP, T8)