Engine Control Module (ECM) Diagnostic Trouble Codes - 2 of 11: Wiring Volvo S80 I

Checking components and wiring

Check the resistance of the outside temperature sensor.

Check the signal cable between control module terminal #B29 (#B39) and outside temperature sensor terminal #2. Check for a short-circuit to ground.

HINT: With the ignition on and the outside temperature sensor connector disconnected, the voltage between #2 and the ground terminal must be approximately 5 V.

Remedy as necessary.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access and replace the outside temperature sensor, see «Outside temperature sensor door mirror, replacing»(ref-461638-S05762406572012040200000)
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000)
4. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

Scheme 34

Scheme 35

1. Continue Refer to «Verification»(ref-440262-S11652891022011121400000)

Checking component and wiring

Check outside temperature sensor resistance.

Check signal cable between control module #B29 (#B39) and outside temperature sensor #1 for a short-circuit to ground according to Short-circuit to ground, permanent faults

HINT: With the ignition on and outside temperature sensor connector disconnected the voltage between #1 and ground terminal should be approximately 5 V.

Remedy as necessary.

Other information

1. Connecting the breakout box/accessing the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To access/replace the outside temperature sensor, see «Outside temperature sensor door mirror, replacing»(ref-461638-S05762406572012040200000) .
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000) .
4. For information about signals on 5-cyl engines, see «Signal specification»(ref-440214-S33124753252011121400000) .
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

1. Continue Refer to «Verification»(ref-440262-S14770472852011121400000)

Check the resistance of the outside temperature sensor.

Note. The outside temperature sensor may be defective if there was a short-circuit to supply voltage in the signal cable. Check this before replacing the sensor.

Check the signal cable between control module terminal #B29 (#B39) and outside temperature sensor terminal #2. Check for a short-circuit to supply voltage. Check for an open-circuit.

HINT: With the ignition on and the outside temperature sensor connector disconnected, the voltage between #2 and ground must be approximately 5 V.

Check the ground lead between control module terminal #B4 (#B14) and outside temperature sensor terminal #3. Check for an open-circuit.

Remedy as necessary.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access and replace the outside temperature sensor, see «Outside temperature sensor door mirror, replacing»(ref-461638-S05762406572012040200000)
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000)
4. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

Scheme 36

1. Continue Refer to «Verification»(ref-440262-S32898971312011121400000)

Checking wiring and components

Check outside temperature sensor resistance.

Note. The outside temperature sensor can be defective if the signal cable has been short-circuited to supply voltage. Check this before replacing the sensor.

Check signal cable between control module #B29 (#B39) and outside temperature sensor #1 for an intermittent open-circuit according to Open-circuit, permanent faults and a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

HINT: With the ignition on and the outside temperature sensor connector disconnected, the voltage between #1 and ground should be approximately 5 V.

Check the ground lead between control module #B2 (#B12) and the outside temperature sensor #2 for an open-circuit according to Open-circuit, permanent faults .

Remedy as necessary.

Other information

1. Connecting the breakout box/accessing the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To access/replace the outside temperature sensor see «Outside temperature sensor door mirror, replacing»(ref-461638-S05762406572012040200000)
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000) .
4. For information about signals on 5-cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000) .
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

1. Continue Refer to «Verification»(ref-440262-S25058788972011121400000)

Checking wiring and connectors

Check the signal cable between control module terminal #A5 (#A5) and intake air temperature (IAT) sensor connector terminal #1. Check for an intermittent short-circuit to ground.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access or replace the intake air temperature (IAT) sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
3. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
4. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

Scheme 37

1. Continue Refer to «Information»(ref-440262-S02269863182011121400000)

Checking the wiring and component

Check the Intake Air Temperature (IAT) sensor resistance.

Check the signal cable between control module terminal #A5 (#A5) and intake air temperature sensor terminal #1. Check for a short-circuit to ground.

HINT: With the ignition on and the intake air temperature (IAT) sensor connector disconnected, the voltage between terminal #1 and ground must be approximately 5 V.

Remedy as necessary.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access or replace the intake air temperature (IAT) sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000)
4. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
6. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440262-S39140568422011121400000)

Check the Intake Air Temperature (IAT) sensor resistance between #1 and #3 on the Mass Air Flow (MAF) sensor. The Intake Air Temperature (IAT) sensor is integrated into the Mass Air Flow (MAF) sensor.

Check signal cable between control module #A5 (#A5) and mass air flow (MAF) sensor #1 for a short-circuit to ground according to Short-circuit to ground, permanent faults

HINT: With the ignition on and the outside temperature sensor connector disconnected, the voltage between #1 and ground should be approximately 5 V.

Remedy as necessary.

Other information

1. Connecting the breakout box/accessing the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To access/replace the Mass Air Flow (MAF) sensor, see «Mass air flow sensor (MAF), replacing»(ref-461749-S37193842222012040200000) .
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000) .
4. For information about signals on 5-cyl engines, see «Signal specification»(ref-440214-S33124753252011121400000) .
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

1. Continue Refer to «Verification»(ref-440262-S16726090332011121400000)

1. Ignition off. Check the intake air temperature (IAT) sensor resistance between terminals #1 and #2 on the boost pressure sensor. NOTE: The intake air temperature (IAT) sensor may be defective if there gas been a short-circuit to supply voltage in the signal cable. Check this before replacing the sensor. Check the signal cable between control module terminal #A5 (#A5) and boost pressure sensor terminal #2. Check for a short-circuit to supply voltage. Check for an open-circuit. HINT: With the ignition on and the boost pressure sensor connector disconnected, the voltage between terminal #2 and ground must be approximately 5 V. Check the ground lead between control module terminal #A60 (#A60) and boost pressure sensor terminal #1. Check for an open-circuit. If no errors are found and the fault is permanent, replace the intake air temperature (IAT) sensor. Remedy as necessary. Other information: To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) To access or replace the intake air temperature (IAT) sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000) For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000) For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000) For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) . See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440262-S04062546412011121400000)

Check the intake air temperature (IAT) sensor connector. Check for contact resistance and oxidation. Check for loose connections.

Check the signal cable between control module terminal #A5 (#A5) and intake air temperature (IAT) sensor connector terminal #1. Check for an intermittent open-circuit. Check for an intermittent short-circuit to supply voltage.

Check the ground lead between control module terminal #A60 (#A60) and intake air temperature (IAT) sensor connector terminal #2. Check for an intermittent open-circuit.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access or replace the intake air temperature (IAT) sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
3. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
4. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Information»(ref-440262-S17843000482011121400000)

Check the Intake Air Temperature (IAT) sensor resistance.

Note. The intake air temperature (IAT) sensor may be defective if there gas been a short-circuit to supply voltage in the signal cable. Check this before replacing the sensor.

Check the signal cable between control module terminal #A5 (#A5) and intake air temperature (IAT) sensor connector terminal #1. Check for an open-circuit. Check for a short-circuit to supply voltage.

HINT: With the ignition on and the intake air temperature (IAT) sensor connector disconnected, the voltage between terminal #1 and ground must be approximately 5 V.

Check the ground lead between control module terminal #A60 (#A60) and intake air temperature (IAT) sensor connector terminal #2. Check for an open-circuit.

Remedy as necessary.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access or replace the intake air temperature (IAT) sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000)
4. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
6. See «Contents»(ref-440209-S18666729612011121400000) .

Scheme 38

1. Continue Refer to «Verification»(ref-440262-S33823907362011121400000)

Check the Intake Air Temperature (IAT) sensor resistance between #1 and #3 on the Mass Air Flow (MAF) sensor. The Intake Air Temperature (IAT) sensor is integrated into the Mass Air Flow (MAF) sensor.

Note. The Intake Air Temperature (IAT) sensor can be defective if the signal cable has been short-circuited to supply voltage. Check this before replacing the sensor.

Check ground lead between control module #A5 (#A5) and Mass Air Flow (MAF) sensor connector #1 for an open-circuit according to Open-circuit, permanent faults and a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

HINT: With the ignition on and the outside temperature sensor connector disconnected, the voltage between #1 and ground should be approximately 5 V.

Check ground lead between control module #A58 (#A58) and Mass Air Flow (MAF) sensor connector #3 for an open-circuit according to Open-circuit, permanent faults .

Remedy as necessary.

Other information

1. Connecting the breakout box/accessing the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To access/replace the Mass Air Flow (MAF) sensor, see «Mass air flow sensor (MAF), replacing»(ref-461749-S37193842222012040200000) .
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000) .
4. For information about signals on 5-cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000) .
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

1. Continue Refer to «Verification»(ref-440262-S16268385702011121400000)

Checking the wiring

Check the cable between engine control module (ECM) terminal #A22 (#A22) and mass air flow (MAF) sensor terminal #5. Check for a short-circuit to supply voltage.

Check the ground lead between terminal #A58 (#A58) and mass air flow (MAF) sensor terminal #3. Check for an open-circuit.

With the ignition on and the mass air flow (MAF) sensor connector disconnected, the voltage at mass air flow (MAF) terminal #2 must be approximately U bat , at mass air flow (MAF) terminal #3 it must be ground and at terminal #5 approximately 1 V.

Remedy as necessary

Other information

1. See «Short-circuit to supply voltage. Permanent faults»(ref-461653-S31172909222012040200000)
2. See «Connecting the breakout box»(ref-440211-S03702023042011121400000)
3. See «Mass air flow sensor (MAF), replacing»(ref-461749-S37193842222012040200000)
4. For information about signals for 5 cylinder engines: «Signal specification»(ref-440214-S33124753252011121400000)
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

1. Continue Refer to «Verification»(ref-440262-S13625488942011121400000)

Check the mass air flow (MAF) sensor connector. Check for contact resistance and oxidation.

Check for air leakage in the intake system and for damage to hoses etc.

Check the power supply cable between system relay terminal #5 and mass air flow (MAF) sensor terminal #2. Check for an open-circuit.

Check the signal cable between engine control module (ECM) terminal #A22 (#A22) and mass air flow (MAF) sensor terminal #5. Check for an open-circuit. Check for a short-circuit to ground.

Check the power supply cable between engine control module (ECM) terminal #A39 (#A39) and mass air flow (MAF) sensor terminal #4. Check for an open-circuit.

HINT: With the ignition on and the mass air flow (MAF) sensor connector connected the voltage at mass air flow (MAF) sensor terminal #2 must be approximately U bat.

Remedy as necessary.

Other information

1. See «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. See «Check for air leaks in the intake system»(ref-440264-S10239834622011121400000)
3. See «Mass air flow sensor (MAF), replacing»(ref-461749-S37193842222012040200000)
4. For information about signals for 5 cylinder engines: «Signal specification»(ref-440214-S33124753252011121400000)
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
6. See «Contents»(ref-440209-S18666729612011121400000)

1. Continue Refer to «Verification»(ref-440262-S15370816602011121400000)

1. Check the boost pressure sensor connector. Check for contact resistance and oxidation. Check the signal cable between engine control module (ECM) terminal #A23 (#A23) and boost pressure sensor terminal #4. Check for a short-circuit to supply voltage. Check for an open-circuit. Check the ground lead between control module terminal #A60 (#A60) and boost pressure sensor terminal #1. Check for an open-circuit. Remedy as necessary. Other information: See «Connecting the breakout box»(ref-440211-S03702023042011121400000) For information about signals for 5 cylinder engines: «Signal specification»(ref-440214-S33124753252011121400000) For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) . See «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000) See «Contents»(ref-440209-S18666729612011121400000)

1. Continue Refer to «Verification»(ref-440262-S06422367712011121400000)

1. Check the boost pressure sensor connector. Check for contact resistance and oxidation. Check the signal cable between engine control module (ECM) terminal #A23 (#A23) and boost pressure sensor terminal #4. Check for a short-circuit to ground. Remedy as necessary. Other information: See «Connecting the breakout box»(ref-440211-S03702023042011121400000) For information about signals for 5 cylinder engines: «Signal specification»(ref-440214-S33124753252011121400000) For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) . See «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000) See «Contents»(ref-440209-S18666729612011121400000)

1. Continue Refer to «Verification»(ref-440262-S27800826152011121400000)

1. Check the boost pressure sensor connector. Check for contact resistance and oxidation. HINT: The diagnostic trouble code (DTC) may be caused by a damaged boost pressure sensor. Remedy as necessary. Other information: See «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000) See «Contents»(ref-440209-S18666729612011121400000)

1. Continue Refer to «Verification»(ref-440262-S34597859722011121400000)

1. Check the boost pressure sensor connector. Check for contact resistance and oxidation. Check that the boost pressure sensor is correctly installed and that there is no air leakage. HINT: The diagnostic trouble code (DTC) may be caused by a damaged boost pressure sensor. Remedy as necessary. Other information: See «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000) See «Contents»(ref-440209-S18666729612011121400000)

1. Continue Refer to «Verification»(ref-440262-S12575384702011121400000)

Check the mass air flow (MAF) sensor connector. Check for contact resistance and oxidation.

Check for air leakage in the intake system and for damage to hoses etc.

Check the inside of the throttle body (TB). Check for contamination. When the throttle body (TB) is contaminated, the air flow to the engine is impaired and diagnostic trouble code (DTCs) or fault symptoms can occur.

Clean the throttle body (TB) if needed.

Check the power supply cable between system relay terminal #5 and mass air flow (MAF) sensor terminal #2. Check for an open-circuit.

Check the signal cable between engine control module (ECM) terminal #A22 (#A22) and mass air flow (MAF) sensor terminal #5. Check for a short-circuit to ground.

Check the power supply cable between engine control module (ECM) terminal #A39 (#A39) and mass air flow (MAF) sensor terminal #4. Check for an open-circuit.

HINT: With the ignition on and the mass air flow (MAF) sensor connector connected the voltage at mass air flow (MAF) sensor terminal #2 must be approximately U bat.

Remedy as necessary.

Other information

1. To connect the breakout box and access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. See «Checking for air leakage in the intake system»(ref-440270-S16938554362011121400000)
3. See «Throttle body (TB), cleaning»(ref-461751-S10631308792012040200000)
4. See «Mass air flow (MAF) sensor, replacing»(ref-440269-S11593902572011121400000)
5. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
6. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
7. See «Contents»(ref-440209-S18666729612011121400000)

1. Continue Refer to «Verification»(ref-440262-S17531460432011121400000)

Checking the component, wiring and connector

Check mass air flow (MAF) sensor connector for intermittent contact resistance, oxidation according to Contact resistance and oxidation and intermittent loose connections according to Contact resistance and oxidation .

Check that there is no air leakage in the intake system or damage to hoses etc according to Check for air leaks in the intake system .

Check signal cable between engine control module (ECM) #A22 (#A22) and mass air flow (MAF) sensor #5 for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults .

Check signal cable between engine control module (ECM) #A22 (#A22) and mass air flow (MAF) sensor #5 for an intermittent open-circuit according to Open-circuit, intermittent faults .

Check power supply cable between engine control module (ECM) #A39 (#A39) and mass air flow (MAF) sensor #4 for an intermittent open-circuit according to Open-circuit, intermittent faults .

Check power supply cable between engine control module (ECM) #A70 (#A70) and mass air flow (MAF) sensor #2 for an intermittent open-circuit according to Open-circuit, intermittent faults .

Remedy as necessary

Other information

1. Connecting the breakout box/accessing the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To access/replace the mass air flow (MAF) sensor, see «Mass air flow sensor (MAF), replacing»(ref-461749-S37193842222012040200000) .
3. With the ignition on and mass air flow (MAF) sensor connector connected the voltage at mass air flow (MAF) sensor #2 should be approximately U bat , mass air flow (MAF) sensor #3 should be ground and mass air flow (MAF) sensor #5, signal cable, should be approximately 1 volt.
4. For information about signals on 5-cyl engines, see «Signal specification»(ref-440214-S33124753252011121400000) .
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

1. Continue Refer to «Information»(ref-440262-S32636072722011121400000)

Check that there is no air leakage in the intake system or damage to hoses etc according to Check for air leaks in the intake system .

Check the signal cable between engine control module (ECM) #A22 (#A22) and mass air flow sensor (MAF) #5 for an open circuit according to Open-circuit, permanent faults .

Check the signal cable between engine control module (ECM) #A22 (#A22) and mass air flow (MAF) sensor #5 for a short-circuit to ground according to Short-circuit to ground, permanent faults .

Check power supply cable between engine control module (ECM) #A39 (#A39) and mass air flow (MAF) sensor #4 for an open-circuit according to Open-circuit, permanent faults .

Check power supply cable between engine control module (ECM) #A70 (#A70) and mass air flow (MAF) sensor #2 for an open-circuit according to Open-circuit, permanent faults .

Remedy as necessary.

Other information

1. Connecting the breakout box/accessing the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To access/replace the Mass Air Flow (MAF) sensor, see «Mass air flow sensor (MAF), replacing»(ref-461749-S37193842222012040200000) .
3. With the ignition on and the mass air flow (MAF) sensor connector connected the voltage at mass air flow (MAF) sensor #2 should be approximately U batt , mass air flow (MAF) sensor #3 should be ground and mass air flow (MAF) sensor #5 should be approximately 1 V.
4. For information about signals on 5-cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000) .
5. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

1. Continue Refer to «Verification»(ref-440262-S24804447782011121400000)

HINT: If a diagnostic trouble code (DTC) for the intake air temperature (IAT) sensor is also stored, this code must be fault-traced first.

Check the connector for the outside temperature sensor. Check for contact resistance and oxidation.

Check the resistance of the outside temperature sensor.

HINT: With the ignition on and the outside temperature sensor connector disconnected, the voltage between terminal #2 and ground must be approximately 5 V.

Remedy as necessary.

Other information

1. See «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. For information about signals on 5 cylinder engines, see: «Signal specification»(ref-440214-S33124753252011121400000)
3. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
4. See «Component specifications»(ref-461750-S34427939622012040200000)
5. See «Outside temperature sensor door mirror, replacing»(ref-461638-S05762406572012040200000) .

1. Continue Refer to «Verification»(ref-440262-S21234063732011121400000)

1. Ignition off. Check the signal cable between control module terminal #A23 (#A23) and boost pressure sensor terminal #4. Check for a short-circuit to supply voltage. Check for an open-circuit. HINT: With the ignition on and the boost pressure sensor connector disconnected, the voltage between terminal #4 and ground terminal should be approximately 5 V. Check the ground lead between control module terminal #A60 (#A60) and boost pressure sensor terminal #1. Check for an open-circuit. If no errors are found and the fault is permanent, replace the boost pressure sensor. Remedy as necessary. Other information: To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000) For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000) For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) . See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440262-S17485181702011121400000)

Check the boost pressure sensor connector. Check for contact resistance and oxidation. Check for loose connections.

Check the signal cable between control module terminal #A23 (#A23) and boost pressure sensor terminal 3. Check for an intermittent open-circuit. Check for an intermittent short-circuit to supply voltage.

Check the ground lead between control module terminal #A60 (#A60) and boost pressure sensor terminal 2. Check for an intermittent open-circuit.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
3. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
4. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

Scheme 39

1. Continue Refer to «Information»(ref-440262-S05930220472011121400000)

Check the signal cable between control module terminal #A23 (#A23) and boost pressure sensor terminal 1. Check for an open-circuit. Check for a short-circuit to supply voltage.

HINT: With the ignition on and the boost pressure sensor connector disconnected, the voltage between terminal 1 and ground terminal must be approximately 5 V.

Check the ground lead between control module terminal #A60 (#A60) and boost pressure sensor terminal 2. Check for an open-circuit.

Remedy as necessary.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
3. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
4. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

Scheme 40

1. Continue Refer to «Verification»(ref-440262-S27660990472011121400000)

1. Ignition off. Check the signal cable between control module terminal #A23 (#A23) and boost pressure sensor terminal #4. Check for a short-circuit to ground. HINT: With the ignition on and the boost pressure sensor connector disconnected, the voltage between terminal #4 and the ground terminal should be approximately 5 V. If no errors are found and the fault is permanent, replace the boost pressure sensor. Remedy as necessary. Other information: To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000) For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000) For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) . See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440262-S06797954582011121400000)

Check the signal cable between control module terminal #A23 (#A23) and boost pressure sensor terminal 1. Check for an intermittent short-circuit to ground.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
3. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
4. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Information»(ref-440262-S01913598842011121400000)

Check the signal cable between control module terminal #A23 (#A23) and boost pressure sensor terminal 1. Check for a short-circuit to ground.

HINT: With the ignition on and the boost pressure sensor connector disconnected the voltage between terminal 1 and ground terminal should be approximately 5 V.

Remedy as necessary.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
3. For information about signals on 5 cylinder engines, see «Signal specification»(ref-440214-S33124753252011121400000)
4. For information about signals on 6 cylinder engines: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440262-S01393052652011121400000)

Note. This diagnostic trouble code (DTC) is stored if the engine coolant temperature (ECT) sensor freezes. This may happen if the coolant level is low or there is too little glycol in the coolant. Check the engine coolant level and its freezing point. Remedy as necessary.

HINT: The diagnostic trouble code (DTC) can be caused by a thermostat that doesn't open.

Scheme 41

1. Ignition off
2. Check the ground lead between control module terminal #A60 (#A60) and engine coolant temperature (ECT) sensor terminal #2. Check for an open-circuit
3. Reinstall the components, reconnect the connectors etc. Other information See «Contents»(ref-440209-S18666729612011121400000) To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) To access the engine coolant temperature (ECT) sensor, see «Temperature sensor engine coolant, replacing»(ref-461758-S26261417092012040200000) For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000) For information about signals, see «Signal specification»(ref-440214-S33124753252011121400000) .

Were any faults found in the cable?

1. YES Refer to «Verification»(ref-440262-S37697009842011121400000)
2. NO Refer to «Checking the engine coolant temperature (ECT)»(ref-440262-S24353291092011121400000)

Note. This diagnostic trouble code (DTC) is stored if the engine coolant temperature (ECT) sensor freezes. This may happen if the coolant level is low or there is too little glycol in the coolant. Check the engine coolant level and its freezing point. Remedy as necessary.

Check the connector on the engine coolant temperature (ECT) sensor. Check for contact resistance and oxidation. Check for loose connections.

Check the ground lead between control module terminal #A60 (#A60) and engine coolant temperature (ECT) sensor terminal #2. Check for an intermittent open-circuit.

HINT: The fault may have been caused by air pockets in the cooling system.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access the engine coolant temperature (ECT) sensor, see «Temperature sensor engine coolant, replacing»(ref-461758-S26261417092012040200000)
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000)
4. For information about signals: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Information»(ref-440262-S37318589512011121400000)

Note. This diagnostic trouble code (DTC) is stored if the engine coolant temperature (ECT) sensor freezes. This may happen if the coolant level is low or there is too little glycol in the coolant. Check the engine coolant level and its freezing point. Remedy as necessary.

1. Ignition off
2. Check the ground lead between control module terminal #A60 (#A60) and engine coolant temperature (ECT) sensor terminal #2. Check for an open-circuit
3. Reinstall the components, reconnect the connectors etc. Other information To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) To access the engine coolant temperature (ECT) sensor, see «Temperature sensor engine coolant, replacing»(ref-461758-S26261417092012040200000) For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000) For information about signals: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) . See «Contents»(ref-440209-S18666729612011121400000) .

Were any faults found in the ground cable?

1. YES Refer to «Verification»(ref-440262-S30973006812011121400000)
2. NO Refer to «Checking the engine coolant temperature (ECT)»(ref-440262-S04178482972011121400000)

Scheme 42

1. Fault-tracing must begin with the engine cold (+20 °C) so that the engine coolant temperature (ECT) sensor can be tested over as wide a temperature range as possible
2. Switch off the climate control unit
3. Start the engine. Read off the engine coolant temperature (ECT). Check that the engine coolant temperature (ECT) is within its permitted range and corresponds with the engine warming up.

Is the temperature within its permitted range?

1. YES Refer to «Checking the thermostat»(ref-440262-S24318731332011121400000)
2. NO Refer to «Replacing the component»(ref-440262-S36969693632011121400000)

1. Ignition off. Check the resistance of the engine coolant temperature (ECT) sensor between terminals #1 and #2 (component side). Check the signal cable between control module terminal #A4 (#A4) and engine coolant temperature (ECT) sensor terminal #1. Check for a short-circuit to ground. If no faults are found and the fault is permanent, replace the engine coolant temperature (ECT) sensor. Remedy as necessary. Other information: To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) To access the engine coolant temperature (ECT) sensor, see «Temperature sensor engine coolant, replacing»(ref-461758-S26261417092012040200000) For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000) For information about signals, see «Signal specification»(ref-440214-S33124753252011121400000) See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440262-S06523918542011121400000)

Check the signal cable between control module terminal #A4 (#A4) and engine coolant temperature (ECT) sensor terminal #1. Check for an intermittent short-circuit to ground.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access the engine coolant temperature (ECT) sensor, see «Temperature sensor engine coolant, replacing»(ref-461758-S26261417092012040200000)
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000)
4. For information about signals: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Information»(ref-440262-S34339930842011121400000)

Check the resistance of the engine coolant temperature (ECT) sensor.

Check the signal cable between control module terminal #A4 (#A4) and engine coolant temperature (ECT) sensor terminal #1. Check for a short-circuit to ground.

Remedy as necessary.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access the engine coolant temperature (ECT) sensor, see «Temperature sensor engine coolant, replacing»(ref-461758-S26261417092012040200000)
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000)
4. For information about signals: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440262-S18723042602011121400000)

1. Ignition off. Check the resistance of the engine coolant temperature (ECT) sensor between terminals #1 and #2 (component side). NOTE: The engine coolant temperature (ECT) sensor may be defective as a result of the signal cable having been short-circuited to supply voltage. Check this before replacing the sensor. Check the signal cable between control module terminal #A4 (#A4) and engine coolant temperature (ECT) sensor terminal #1. Check for an open-circuit. Check for a short-circuit to supply voltage. 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 between control module terminal #A60 (#A60) and engine coolant temperature (ECT) sensor terminal #2. Check for an open-circuit. If no faults are found and the fault is permanent, replace the engine coolant temperature (ECT) sensor. Remedy as necessary. Other information To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) To access the engine coolant temperature (ECT) sensor, see «Temperature sensor engine coolant, replacing»(ref-461758-S26261417092012040200000) For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000) For information about signals, see «Signal specification»(ref-440214-S33124753252011121400000) See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440262-S22196996132011121400000)

Check the signal cable between control module terminal #A4 (#A4) and engine coolant temperature (ECT) sensor terminal #1. Check for an intermittent open-circuit. Check for an intermittent short-circuit to supply voltage.

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 between control module terminal #A60 (#A60) and engine coolant temperature (ECT) sensor terminal #2. Check for an intermittent open-circuit.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access the engine coolant temperature (ECT) sensor, see «Temperature sensor engine coolant, replacing»(ref-461758-S26261417092012040200000)
3. For the resistance values, see «Component specifications»(ref-461750-S34427939622012040200000)
4. For information about signals: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Information»(ref-440262-S17344373202011121400000)

Check the resistance of the engine coolant temperature (ECT) sensor.

Note. The engine coolant temperature (ECT) sensor may be defective as a result of the signal cable having been short-circuited to supply voltage. Check this before replacing the sensor.

Check the signal cable between control module terminal #A4 (#A4) and engine coolant temperature (ECT) sensor terminal #1. Check for an open-circuit. Check for a short-circuit to supply voltage.

HINT: With the ignition on and engine coolant temperature (ECT) sensor connector disconnected the voltage between terminal #1 and ground terminal must be approximately 5 V.

Check the ground lead between control module terminal #A60 (#A60) and engine coolant temperature (ECT) sensor terminal #2. Check for an open-circuit.

Remedy as necessary.

Other information

1. To connect the breakout box / access the control module, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To access the engine coolant temperature (ECT) sensor, see «Temperature sensor engine coolant, replacing»(ref-461758-S26261417092012040200000)
3. For resistance values, see «Component specifications»(ref-461750-S34427939622012040200000)
4. For information about signals: For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000) For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000) For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000) For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .
5. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440262-S31518018412011121400000)

Check the cable that relates to the diagnostic trouble code (DTC). Check for an open-circuit.

Check between

1. Engine control module (ECM) terminal #A16 (#A16) and injector terminal #2 (ECM-200B, injector 1)
2. Engine control module (ECM) terminal #A34 (#A34) and injector terminal #2 (ECM-201B, injector 2)
3. Engine control module (ECM) terminal #A15 (#A15) and injector terminal #2 (ECM-202B, injector 3)
4. Engine control module (ECM) terminal #A33 (#A33) and injector terminal #2 (ECM-203B, injector 4)
5. Engine control module (ECM) terminal #A14 (#A14) and injector terminal #2 (ECM-204B, injector 5).

Remedy as necessary.

Other information

1. See «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. See «Signal specification»(ref-440214-S33124753252011121400000)
3. See «Injectors/pulsation dampers, replacing»(ref-461757-S18671487152012040200000)
4. See «Contents»(ref-440209-S18666729612011121400000)

Scheme 43

1. Continue Refer to «Verification»(ref-440262-S29752871742011121400000)

Check the cable that relates to the diagnostic trouble code (DTC). Check for a short-circuit to supply voltage.

Check between

1. Engine control module (ECM) terminal #A16 (#A16) and injector terminal #2 (ECM-200C, injector 1)
2. Engine control module (ECM) terminal #A34 (#A34) and injector terminal #2 (ECM-201C, injector 2)
3. Engine control module (ECM) terminal #A15 (#A15) and injector terminal #2 (ECM-202C, injector 3)
4. Engine control module (ECM) terminal #A33 (#A33) and injector terminal #2 (ECM-203C, injector 4)
5. Engine control module (ECM) terminal #A14 (#A14) and injector terminal #2 (ECM-204C, injector 5).

Remedy as necessary.

Other information

1. See «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. See «Signal specification»(ref-440214-S33124753252011121400000)
3. See «Injectors/pulsation dampers, replacing»(ref-461757-S18671487152012040200000)
4. See «Contents»(ref-440209-S18666729612011121400000)

1. Continue Refer to «Verification»(ref-440262-S11212013102011121400000)

Check the cable that relates to the diagnostic trouble code (DTC). Check for a short-circuit to ground.

Check between

1. Engine control module (ECM) terminal #A16 (#A16) and injector terminal #2 (ECM-200D, injector 1)
2. Engine control module (ECM) terminal #A34 (#A34) and injector terminal #2 (ECM-201D, injector 2)
3. Engine control module (ECM) terminal #A15 (#A15) and injector terminal #2 (ECM-202D, injector 3)
4. Engine control module (ECM) terminal #A33 (#A33) and injector terminal #2 (ECM-203D, injector 4)
5. Engine control module (ECM) terminal #A14 (#A14) and injector terminal #2 (ECM-204D, injector 5).

Remedy as necessary.

Other information

1. See «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. See «Signal specification»(ref-440214-S33124753252011121400000)
3. See «Injectors/pulsation dampers, replacing»(ref-461757-S18671487152012040200000)
4. See «Contents»(ref-440209-S18666729612011121400000)

1. Continue Refer to «Verification»(ref-440262-S10906884532011121400000)