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Engine Control Module (ECM) Diagnostic Trouble Codes - 3 of 8: Wiring Volvo C30 I рестайлинг

Testing & Diagnostics 2 illustrations ~1502 words

CHECKING THE COMPONENT AND WIRING

Check the fuel pressure sensor connectors. Check for contact resistance and oxidation.

Remedy as necessary.

Try a new fuel pressure sensor if no fault is found during the above fault-tracing.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S08653660702012091100000)
  3. see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S17692791512012091100000)

Check the fuel pressure sensor connectors. Check for contact resistance and oxidation.

Remedy as necessary.

Try a new fuel pressure sensor if no fault is found during the above fault-tracing.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S40520643792012091100000)
  3. see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S07938389292012091100000)

Check the fuel pressure sensor connectors. Check for contact resistance and oxidation.

Remedy as necessary.

Try a new fuel pressure sensor if no fault is found during the above fault-tracing.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S08653660702012091100000)
  3. see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S27038642132012091100000)

Check the fuel pressure sensor connectors. Check for contact resistance and oxidation.

Remedy as necessary.

Try a new fuel pressure sensor if no fault is found during the above fault-tracing.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S40520643792012091100000)
  3. see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S16272270292012091100000)
WARNINGThe engine cooling fan (FC) can also operate if the ignition is switched off when this diagnostic trouble code (DTC) is stored.

HINT: To avoid injury, disconnect the power supply to the engine cooling fan (FC) during fault-tracing.

Check the resistance of the engine coolant temperature (ECT) sensor. Take readings between terminals #1 and #2 on the engine coolant temperature (ECT) sensor.

Check the signal cable. Check for a short-circuit to ground.

Take readings between

  1. Engine Control Module (ECM) #A42 (#A42) and engine temperature sensor #1.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S36983929532012091100000)
  3. see «COMPONENT SPECIFICATIONS»(ref-500252-S01220863972012091100000)
  4. see «ENGINE COOLANT TEMPERATURE SENSOR (ECT)»(ref-500254-S41916200992012091100000)
  5. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)

Scheme 65

Scheme 65
Scheme 65
  1. Continue Refer to «VERIFICATION»(ref-500316-S02828973052012091100000)

CHECKING THE COMPONENTS AND WIRING

WARNINGThe engine cooling fan (FC) can also operate if the ignition is switched off when this diagnostic trouble code (DTC) is stored.

HINT: To avoid injury, disconnect the power supply to the engine cooling fan (FC) during fault-tracing.

  1. Check the connector on the engine coolant temperature (ECT) sensor. Check for contact resistance and oxidation. Check the resistance of the engine coolant temperature (ECT) sensor. Take readings between terminals #1 and #2 on the engine coolant temperature (ECT) sensor. Check signal cable for an open-circuit and short-circuit to supply voltage. Take readings between: Engine Control Module (ECM) #A42 (#A42) and engine temperature sensor #1. HINT: With the ignition on and engine coolant temperature (ECT) sensor connector disconnected the voltage between terminal #1 and ground terminal should be approximately 5 V. Check the ground lead. Check for an open-circuit. Take readings between: Engine Control Module (ECM) #A12 (#A12) and engine temperature sensor #2. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000) see «SIGNAL SPECIFICATION»(ref-500252-S36983929532012091100000) see «COMPONENT SPECIFICATIONS»(ref-500252-S01220863972012091100000) see «ENGINE COOLANT TEMPERATURE SENSOR (ECT)»(ref-500254-S41916200992012091100000) see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S21483898912012091100000)
  1. Check the fuel pressure sensor connectors. Check for contact resistance and oxidation. Check signal cable for an open-circuit and short-circuit to supply voltage. Take readings between: Engine Control Module (ECM) #A89 (#B29) and fuel pressure sensor #4. Check the ground lead. Check for an open-circuit. Take readings between: Engine Control Module (ECM) #A15 (#A15) and fuel pressure sensor #1. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000) see «SIGNAL SPECIFICATION»(ref-500252-S36983929532012091100000) see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000) see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S08939238212012091100000)
  1. Check the fuel pressure sensor connectors. Check for contact resistance and oxidation. Check signal cable for an open-circuit and short-circuit to supply voltage. Take readings between: Engine Control Module (ECM) #A89 (#B29) and fuel pressure sensor #4. Check the ground lead. Check for an open-circuit. Take readings between: Engine Control Module (ECM) #A15 (#A15) and fuel pressure sensor #1. Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000) see «SIGNAL SPECIFICATION»(ref-500252-S36983929532012091100000) see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000) see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S11476361752012091100000)

Check the signal cable. Check for a short-circuit to ground.

Take readings between

  1. Engine Control Module (ECM) #A89 (#B29) and fuel pressure sensor #4.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S36983929532012091100000)
  3. see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000)
  4. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S07976545622012091100000)

Check the fuel pressure sensor connectors. Check for contact resistance and oxidation.

Remedy as necessary.

Try a new fuel pressure sensor if no fault is found during the above fault-tracing.

Other information

  1. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  2. see «TEMPERATURE AND MANIFOLD ABSOLUTE PRESSURE SENSOR (MAPT)»(ref-500254-S18776224862012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S25697150002012091100000)

Check the fuel pressure sensor connectors. Check for contact resistance and oxidation.

Remedy as necessary.

Try a new fuel pressure sensor if no fault is found during the above fault-tracing.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S36983929532012091100000)
  3. see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000)
  4. see «CONTENTS»(ref-500249-S15428429872012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S11966955522012091100000)

Check the fuel pressure sensor connectors. Check for contact resistance and oxidation.

Remedy as necessary.

Try a new fuel pressure sensor if no fault is found during the above fault-tracing.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S36983929532012091100000)
  3. see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000)
  4. see «CONTENTS»(ref-500249-S15428429872012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S01876121022012091100000)

Check the fuel pressure sensor connectors. Check for contact resistance and oxidation.

Remedy as necessary.

Try a new fuel pressure sensor if no fault is found during the above fault-tracing.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S36983929532012091100000)
  3. see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000)
  4. see «CONTENTS»(ref-500249-S15428429872012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S35789118482012091100000)

Check the fuel pressure sensor connectors. Check for contact resistance and oxidation.

Remedy as necessary.

Try a new fuel pressure sensor if no fault is found during the above fault-tracing.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S36983929532012091100000)
  3. see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000)
  4. see «CONTENTS»(ref-500249-S15428429872012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S15037971272012091100000)

Check the voltage supply to the fuel pump control module and fuel pump, including relay and fuse.

Check the ground connection to the fuel pump control module and fuel pump.

Check the connector for the fuel pump control module for contact resistance and oxidation.

Check the signal cable between the engine control module (ECM) and fuel pump control module. Check for open-circuits, short-circuiting to ground and short-circuiting to voltage.

Check the connectors and cable harnesses between the fuel pump control module and fuel pump for short circuits.

Remedy as necessary.

Hint: The DTC may be caused by damaged fuel pump, or by damaged fuel pump control module.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000)
  2. see «SIGNAL SPECIFICATION»(ref-500252-S08653660702012091100000)
  3. see «FUEL PUMP AND LEVEL SENSOR UNIT»(ref-500308-S36744759732012091100000)
  4. see «FUEL PUMP DRIVER MODULE»(ref-500254-S33674987522012091100000)
  5. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)

Continue

Refer to VERIFICATION .

HINT: The fuel temperature sensor is integrated in the fuel pressure sensor.

  1. Check the fuel pressure sensor connectors. Check for contact resistance and oxidation. Check the fuel pressure sensor between terminals #1 and #2 (sensor side). Check the resistance. Check signal cable for an open-circuit and short-circuit to supply voltage. Take readings between: Engine Control Module (ECM) #A41 (#A41) and fuel pressure sensor #2. Check the ground lead. Check for an open-circuit. Take readings between: Engine Control Module (ECM) #A15 (#A15) and fuel pressure sensor #1. Remedy as necessary. Other information: see «CONNECTING THE BREAKOUT BOX»(ref-500251-S16432032892012091100000) see «SIGNAL SPECIFICATION»(ref-500252-S36983929532012091100000) see «COMPONENT SPECIFICATIONS»(ref-500252-S01220863972012091100000) see «PRESSURE SENSOR, FUEL RAIL (FRP)»(ref-500254-S13073282302012091100000) see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S00456852672012091100000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor (HO2S) connector.

Check the cable between engine control module (ECM) terminal #A95 (#B35) and heated oxygen sensor (HO2S) terminal #4. Check for a short-circuit to supply voltage.

Try a new heated oxygen sensor (HO2S) if the above fault-tracing does not remedy the fault.

Remedy as necessary.

Other information

  1. see «SIGNAL SPECIFICATION»(ref-500252-S08653660702012091100000)
  2. see «OXYGEN SENSOR (CATALYST MONITOR SENSOR)»(ref-500310-S09387820172012091100000)
  3. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)

Scheme 66

Scheme 66
Scheme 66
  1. Continue Refer to «VERIFICATION»(ref-500316-S33057290452012091100000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor (HO2S) connector.

Check the cable between engine control module (ECM) terminal #A95 (#B35) and heated oxygen sensor (HO2S) terminal #4. Check for a short-circuit to supply voltage.

Try a new heated oxygen sensor (HO2S) if the above fault-tracing does not remedy the fault.

Remedy as necessary.

Other information

  1. see «SIGNAL SPECIFICATION»(ref-500252-S40520643792012091100000)
  2. see «OXYGEN SENSOR (CATALYST MONITOR SENSOR)»(ref-500310-S09387820172012091100000)
  3. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S16730527632012091100000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor (HO2S) connector.

Check the cable between engine control module (ECM) terminal #A95 (#B35) and heated oxygen sensor (HO2S) terminal #4. Check for an open-circuit. Check for a short-circuit to ground.

Try a new heated oxygen sensor (HO2S) if the above fault-tracing does not remedy the fault.

Remedy as necessary.

Other information

  1. see «SIGNAL SPECIFICATION»(ref-500252-S08653660702012091100000)
  2. see «OXYGEN SENSOR (CATALYST MONITOR SENSOR)»(ref-500310-S09387820172012091100000)
  3. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S37003185972012091100000)
CAUTIONDo not apply rust solvent spray or grease to the heated oxygen sensor (HO2S) connector.

Check the cable between engine control module (ECM) terminal #A95 (#B35) and heated oxygen sensor (HO2S) terminal #4. Check for an open-circuit. Check for a short-circuit to ground.

Try a new heated oxygen sensor (HO2S) if the above fault-tracing does not remedy the fault.

Remedy as necessary.

Other information

  1. see «SIGNAL SPECIFICATION»(ref-500252-S40520643792012091100000)
  2. see «OXYGEN SENSOR (CATALYST MONITOR SENSOR)»(ref-500310-S09387820172012091100000)
  3. see «CHECKING WIRING AND TERMINALS»(ref-500249-S05296466302012091100000)
  1. Continue Refer to «VERIFICATION»(ref-500316-S19388222202012091100000)

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