Engine Control Module (ECM) Diagnostic Trouble Codes - 9 of 11: Wiring Volvo S80 I

Checking the component, wiring and connector

Check camshaft reset valve connector for intermittent contact resistance, oxidation according to Contact resistance and oxidation and intermittent loose connections according to Contact resistance and oxidation .

Check the signal cable between engine control module (ECM) #A13 and camshaft reset valve #5 for an intermittent open-circuit according to Open-circuit, intermittent faults .

Check power supply cable #5 and camshaft reset valve #1 for an intermittent open-circuit according to Open-circuit, intermittent faults .

Remedy as necessary.

Other information

1. To connect the breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To access/replace the camshaft reset valve, see.
3. With the ignition on and the camshaft reset valve connector disconnected the voltage at connector #1 should be approximately Ubatt and at connector #2 it should be a pulse modulated signal with a peak voltage of approximately Ubatt and with a frequency of approximately 250 Hz.
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 287

Scheme 288

1. Continue Refer to «Information»(ref-440291-S12757721632011121400000)

Checking component and wiring

Check reset valve camshaft resistance between #1 and #2, resistance should be approximately 3.7 ohm.

Check signal cable between engine control module (ECM) #A13 and camshaft reset #2 for an open-circuit according to Open-circuit, permanent faults .

Check power supply cable #5 and camshaft reset valve #1 for an open-circuit according to Open-circuit, permanent faults .

Remedy as necessary.

Other information

1. To connect the breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To access/replace the camshaft reset valve, see.
3. With the ignition on and the camshaft reset valve connector disconnected the voltage at connector #1 should be approximately Ubat and at connector #2 it should be a pulse modulated signal with a peak voltage of approximately U bat and with a frequency of approximately 250 Hz.
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-440291-S32624273182011121400000)

Checking wiring and connectors

Check the signal cable between engine control module (ECM) #A13 and camshaft reset valve #2 for an intermittent short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults .

Other information

1. To connect the breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To access/replace the camshaft reset valve, see.
3. With the ignition on and the camshaft reset valve connector disconnected the voltage on connector #1 should be approximately U bat and at connector #2 it should be a pulse modulated signal with a peak voltage of approximately Ubatt and with a frequency of approximately 250 Hz.
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 «Information»(ref-440291-S25947425632011121400000)

Check signal cable between engine control module (ECM) #A13 and camshaft reset #2 for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults .

Check power supply cable #5 and camshaft reset valve #1 for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults .

Other information

1. To connect the breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To access/replace the camshaft reset valve, see «CAMSHAFT SEAL/VARIABLE VALVE TIMING (VVT) UNIT, REPLACING»(ref-440293-S12558219492011121400000) .
3. With the ignition on and the camshaft reset valve connector disconnected the voltage on connector #1 should be approximately Ubatt and at connector #2 it should be a pulse modulated signal with a peak voltage of approximately Ubatt and with a frequency of approximately 250 Hz.
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 «Information»(ref-440291-S34322609672011121400000)

Checking the components and wiring

Check the resistance on camshaft reset valve between terminals #1 and #2. Resistance must be approximately 3.7 ohms.

Check the signal cable between Engine control module (ECM) terminal #A13 and camshaft reset valve terminal #2. Check for an open-circuit, short-circuit to ground and short-circuit to voltage.

Check the power supply cable between system relay terminal #5 and camshaft reset valve terminal #1. Check for an open-circuit.

Remedy as necessary.

Other information

1. See «Checking wiring and terminals»(ref-440209-S33835172972011121400000)
2. To connect the breakout box, see: «Connecting the breakout box»(ref-440211-S03702023042011121400000)
3. For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000)
4. For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000)
5. For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000)
6. For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

Scheme 289

Scheme 290

Was a fault detected?

1. YES Refer to «Verification»(ref-440291-S02143682242011121400000)
2. NO Refer to «Checking components»(ref-440291-S33995381922011121400000)

Check the resistance on camshaft reset valve between terminals #1 and #2. Resistance must be approximately 3.7 ohms.

Check the signal cable between Engine control module (ECM) terminal #A13 and camshaft reset valve terminal #2. Check for an open-circuit, short-circuit to ground and short-circuit to voltage.

Check the power supply cable between system relay terminal #5 and camshaft reset valve terminal #1. Check for an open-circuit.

Remedy as necessary.

Other information

1. See «Checking wiring and terminals»(ref-440209-S33835172972011121400000)
2. To connect the breakout box, see: «Connecting the breakout box»(ref-440211-S03702023042011121400000)
3. For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000)
4. For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000)
5. For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000)
6. For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

Was a fault detected?

1. YES Refer to «Verification»(ref-440291-S09537232382011121400000)
2. NO Refer to «Checking components»(ref-440291-S31843137152011121400000)

Check the resistance on camshaft reset valve between terminals #1 and #2. Resistance must be approximately 3.7 ohms.

Check the signal cable between Engine control module (ECM) terminal #A13 and camshaft reset valve terminal #2. Check for an open-circuit, short-circuit to ground and short-circuit to voltage.

Check the power supply cable between system relay terminal #5 and camshaft reset valve terminal #1. Check for an open-circuit.

Remedy as necessary.

Other information

1. See «Checking wiring and terminals»(ref-440209-S33835172972011121400000)
2. To connect the breakout box, see: «Connecting the breakout box»(ref-440211-S03702023042011121400000)
3. For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000)
4. For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000)
5. For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000)
6. For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

Was a fault detected?

1. YES Refer to «Verification»(ref-440291-S29380761182011121400000)
2. NO Refer to «Checking components»(ref-440291-S25668675542011121400000)

Check the resistance on camshaft reset valve between terminals #1 and #2. Resistance must be approximately 3.7 ohms.

Check the signal cable between Engine control module (ECM) terminal #A13 and camshaft reset valve terminal #2. Check for an open-circuit, short-circuit to ground and short-circuit to voltage.

Check the power supply cable between system relay terminal #5 and camshaft reset valve terminal #1. Check for an open-circuit.

Remedy as necessary.

Other information

1. See «Checking wiring and terminals»(ref-440209-S33835172972011121400000)
2. To connect the breakout box, see: «Connecting the breakout box»(ref-440211-S03702023042011121400000)
3. For 6 cylinder engines -2001, see «Signal specification»(ref-440279-S16581672222011121400000)
4. For 6 cylinder engines 2002-, see «Signal specification»(ref-440279-S30114162992011121400000)
5. For 6 cylinder engines -2004, see «Signal specification»(ref-440279-S11542834502011121400000)
6. For 6 cylinder engines 2005-, see «Signal specification»(ref-440279-S13492600202011121400000) .

Was a fault detected?

1. YES Refer to «Verification»(ref-440291-S21008083632011121400000)
2. NO Refer to «Checking components»(ref-440291-S29431283172011121400000)

Checking the component and wiring

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #2 for open circuit according to: Checking wiring and terminals. Permanent fault

Remedy as necessary.

Other information

1. To connect the breakout box to the Engine control module (ECM), see: «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To connect the breakout box to the driver information module (DIM), see: «Connecting the breakout box»(ref-440230-S17447635352011121400000)
3. See «Driver information module (DIM), replacing»(ref-461655-S11663013282012040200000)
4. Signal description engine control module (ECM): «Signal specification»(ref-440214-S33124753252011121400000)
5. Signal description Driver information module (DIM): «Signal specification»(ref-440231-S05336891392011121400000)

1. Continue Refer to «Verification»(ref-440291-S05175046412011121400000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #2 for open circuit according to: Checking wiring and terminals. Permanent fault

Remedy as necessary.

Other information

1. To connect the breakout box to the Engine control module (ECM), see: «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To connect the breakout box to the driver information module (DIM), see: «Connecting the breakout box»(ref-440230-S17447635352011121400000)
3. See «Driver information module (DIM), replacing»(ref-461655-S11663013282012040200000)
4. Signal description engine control module (ECM): 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. Signal description Driver information module (DIM): «Signal specification»(ref-440231-S05336891392011121400000)

1. Continue Refer to «Verification»(ref-440291-S21629468622011121400000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #2 for short-circuiting according to: Checking wiring and terminals. Permanent fault

Remedy as necessary.

Other information

1. For connection of engine control module (ECM) breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To connect the breakout box to the Driver information module (DIM), see: «Connecting the breakout box»(ref-440230-S17447635352011121400000)
3. To access/replace the combined instrument panel, see «Driver information module (DIM), replacing»(ref-461655-S11663013282012040200000)
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) .
6. Signal description Driver information module (DIM): «Signal specification»(ref-440231-S05336891392011121400000)

1. Continue Refer to «Verification»(ref-440291-S13256665862011121400000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #2 for short-circuiting to ground according to: Checking wiring and terminals. Permanent fault

Remedy as necessary.

Other information

1. For connection of engine control module (ECM) breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To connect the breakout box to the Driver information module (DIM), see: «Connecting the breakout box»(ref-440230-S17447635352011121400000)
3. To access/replace the combined instrument panel, see «Driver information module (DIM), replacing»(ref-461655-S11663013282012040200000)
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) .
6. Signal description Driver information module (DIM): «Signal specification»(ref-440231-S05336891392011121400000)

1. Continue Refer to «Verification»(ref-440291-S03585519082011121400000)

Check cable between engine control module (ECM) #B46 and combined instrument panel #4 for an intermittent open-circuit according to Open-circuit, intermittent faults .

Remedy as necessary.

Other information

1. To connect the engine control module (ECM) breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To connect the combined instrument panel breakout box, see «Connecting the Driver Information Module (DIM) test box»(ref-440230-S28722940192011121400000)
3. For information about signals on 5-cyl 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. For information about the combined instrument panel connector, see «Driver Information Module (DIM) signal description»(ref-440231-S28673060292011121400000) .

1. Continue Refer to «Information»(ref-440291-S30127192782011121400000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #4 for open circuit according to: Checking wiring and terminals. Permanent fault

Remedy as necessary.

Other information

1. To connect the breakout box to the Engine control module (ECM), see: «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To connect the breakout box to the driver information module (DIM), see: «Connecting the Driver Information Module (DIM) test box»(ref-440230-S28722940192011121400000)
3. See «Driver information module (DIM), replacing»(ref-461655-S11663013282012040200000)
4. Signal description engine control module (ECM): «Signal specification»(ref-440214-S33124753252011121400000)
5. Signal description Driver information module (DIM): «Driver Information Module (DIM) signal description»(ref-440231-S28673060292011121400000)

1. Continue Refer to «Verification»(ref-440291-S09349847702011121400000)

Check the cable between Engine control module (ECM) #B46 and Driver information module (DIM) #4 for open circuit according to: Checking wiring and terminals. Permanent fault

Remedy as necessary.

Other information

1. To connect the breakout box to the Engine control module (ECM), see: «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To connect the breakout box to the driver information module (DIM), see: «Connecting the Driver Information Module (DIM) test box»(ref-440230-S28722940192011121400000)
3. See «Driver information module (DIM), replacing»(ref-461655-S11663013282012040200000)
4. Signal description engine control module (ECM): 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. Signal description Driver information module (DIM): «Driver Information Module (DIM) signal description»(ref-440231-S28673060292011121400000)

1. Continue Refer to «Verification»(ref-440291-S00790297842011121400000)

Check the cable between engine control module (ECM) #B46 and combined instrument panel #4 for an intermittent short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults .

Remedy as necessary.

Other information

1. To connect the engine control module (ECM) breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To connect the combined instrument panel breakout box, see «Connecting the Driver Information Module (DIM) test box»(ref-440230-S28722940192011121400000)
3. For information about signals on 5-cyl 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. For information about the combined instrument panel connector, see «Driver Information Module (DIM) signal description»(ref-440231-S28673060292011121400000) .

1. Continue Refer to «Information»(ref-440291-S06330608902011121400000)

Check cable between engine control module (ECM) #B46 and combined instrument panel #4 for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults .

Remedy as necessary.

Other information

1. For connection of engine control module (ECM) breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To connect the combined instrument panel breakout box, see «Connecting the Driver Information Module (DIM) test box»(ref-440230-S28722940192011121400000)
3. To access/replace the combined instrument panel, see «Driver information module (DIM), replacing»(ref-461655-S11663013282012040200000)
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) .
6. For information about the combined instrument panel connector, see «Driver Information Module (DIM) signal description»(ref-440231-S28673060292011121400000) .

1. Continue Refer to «Verification»(ref-440291-S03879478002011121400000)

Check the cable between engine control module (ECM) #B46 and combined instrument panel #4 for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults .

Remedy as necessary.

Other information

1. To connect the engine control module (ECM) breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000)
2. To connect the combined instrument panel breakout box, see «Connecting the Driver Information Module (DIM) test box»(ref-440230-S28722940192011121400000)
3. For information about signals on 5-cyl 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. For information about the combined instrument panel connector, see «Driver Information Module (DIM) signal description»(ref-440231-S28673060292011121400000) .

1. Continue Refer to «Information»(ref-440291-S18034879052011121400000)

Check the cable between engine control module (ECM) #B46 and combined instrument panel #4 for a short-circuit to ground according to Short-circuit to ground, permanent faults .

Remedy as necessary.

Other information

1. For connection of engine control module (ECM) breakout box, see «Connecting the breakout box»(ref-440211-S03702023042011121400000) .
2. To connect the combined instrument panel breakout box, see «Connecting the Driver Information Module (DIM) test box»(ref-440230-S28722940192011121400000)
3. To access/replace the combined instrument panel, see «Driver information module (DIM), replacing»(ref-461655-S11663013282012040200000)
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) .
6. For information about the combined instrument panel connector, see «Driver Information Module (DIM) signal description»(ref-440231-S28673060292011121400000) .

1. Continue Refer to «Verification»(ref-440291-S24786235062011121400000)

Checking components and wiring

The immobilizer function is integrated in the central electronic module (CEM).

The engine control module (ECM) has previously registered a fault in the communication between the immobilizer and the engine control module (ECM), but has detected that this fault is no longer active.

1. Continue Refer to «Information»(ref-440291-S09913990432011121400000)

Checking wiring

Check the cable between system relay terminal 3 and control module terminal A70 (#B10) for an intermittent open-circuit and an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults .

Was a fault detected?

1. YES OKAY: Troubleshooting has been completed.
2. NO FAULT TRACING FAILED: The fault should have been detected and remedied. As this is not the case fault-tracing has failed. Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Checking the wiring

Check the power supply cable between control module terminal #A39 (#A39) and mass air flow (MAF) sensor terminal #4. Check for an intermittent short-circuit to supply voltage.

Check the power supply cable between the control module terminal #A39 (#A39) and boost pressure sensor terminal #1. Check for an intermittent short-circuit to supply voltage.

Check the power supply cable between control module terminal #A39 (#A39) and air conditioning (A/C) pressure sensor terminal #3. Check for an intermittent short-circuit to supply voltage.

Check the power cable between control module terminal #B10 (#B20) and fuel tank pressure sensor connector terminal #3. Check for an intermittent short-circuit to supply voltage.

HINT: Read off the 5-volt power supply by clicking on the VCT2000 symbol.

Remedy as necessary.

Other information

1. To connect the breakout box, 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. To access or replace the mass air flow (MAF) sensor, see «Mass air flow sensor (MAF), replacing»(ref-461749-S37193842222012040200000)
5. To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
6. See «Contents»(ref-440209-S18666729612011121400000) .

Scheme 291

1. Continue Refer to «Information»(ref-440291-S01762191552011121400000)

Check the power supply cable between control module terminal #A39 (#A39) and mass air flow (MAF) sensor terminal #4. Check for a short-circuit to supply voltage.

Check the power supply cable between control module terminal #A39 (#A39) and boost pressure sensor terminal #1. Check for a short-circuit to supply voltage.

Check the power supply cable between control module terminal #A39 (#A39) and air conditioning (A/C) pressure sensor terminal #3. Check for a short-circuit to supply voltage.

Check the power cable between control module terminal #B10 (#B20) and fuel tank pressure sensor connector terminal #3. Check for a short-circuit to supply voltage.

HINT: Read off the 5-volt power supply by clicking on the VCT2000 symbol.

Remedy as necessary.

Other information

1. To connect the breakout box, 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. To access or replace the mass air flow (MAF) sensor, see «Mass air flow sensor (MAF), replacing»(ref-461749-S37193842222012040200000)
5. To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
6. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440291-S07191574022011121400000)

Check the power supply cable between control module terminal #A39 (#A39) and mass air flow (MAF) sensor terminal #4. Check for an intermittent short-circuit to ground.

Check the power supply cable between control module terminal #A39 (#A39) and boost pressure sensor terminal #1. Check for an intermittent short-circuit to ground.

Check the power supply cable between control module terminal #A39 (#A39) and air conditioning (A/C) pressure sensor terminal #3. Check for an intermittent short-circuit to ground.

Check the power cable between control module terminal #B10 (#B20) and fuel tank pressure sensor connector terminal #3. Check for an intermittent short-circuit to ground.

HINT: Read off the 5-volt power supply by clicking on the VCT2000 symbol.

Remedy as necessary.

Other information

1. To connect the breakout box, 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. To access or replace the mass air flow (MAF) sensor, see «Mass air flow sensor (MAF), replacing»(ref-461749-S37193842222012040200000)
5. To access or replace the boost pressure sensor. See «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000) .

1. Continue Refer to «Information»(ref-440291-S36492098582011121400000)

Check the power supply cable between control module terminal #A39 (#A39) and mass air flow (MAF) sensor terminal #4. Check for a short-circuit to ground.

Check the power supply cable between control module terminal #A39 (#A39) and boost pressure sensor terminal #1. Check for a short-circuit to ground.

Check the power supply cable between control module terminal #A39 (#A39) and air conditioning (A/C) pressure sensor terminal #3. Check for a short-circuit to ground.

Check the power cable between control module terminal #B10 (#B20) and fuel tank pressure sensor connector terminal #3. Check for a short-circuit to ground.

HINT: Read off the 5-volt power supply by clicking on the VCT2000 symbol.

Remedy as necessary.

Other information

1. To connect the breakout box, 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. To access or replace the mass air flow (MAF) sensor, see «Mass air flow sensor (MAF), replacing»(ref-461749-S37193842222012040200000)
5. To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
6. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440291-S07914159302011121400000)

Check the power supply cable between control module terminal #A39 (#A39) and mass air flow (MAF) sensor terminal #4. Check for a short-circuit to supply voltage.

Check the power supply cable between control module terminal #A39 (#A39) and boost pressure sensor terminal #3. Check for a short-circuit to supply voltage.

Check the power supply cable between control module terminal #A39 (#A39) and air conditioning (A/C) pressure sensor terminal #3. Check for a short-circuit to supply voltage.

HINT: Read off the voltage on the 5 volt power supply by clicking on the VCT2000 symbol.

Remedy as necessary.

Other information

1. To connect the breakout box, 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. For the location of components on 5 cylinder engines, see «Location of components»(ref-461673-S37190921092012040200000)
5. For the location of components on 6 cylinder turbocharged engines: For 6 cylinder turbocharged engines -2001, see «Location of components»(ref-440286-S18591874812011121400000) For 6 cylinder turbocharged engines 2002, see «Location of components, engine compartment»(ref-440286-S07948714472011121400000) For 6 cylinder turbocharged engines 2003-, see «Location of components, engine compartment»(ref-440286-S42548706262011121400000) .
6. To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
7. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440291-S22540108312011121400000)

Check the power supply cable between control module terminal #A39 (#A39) and mass air flow (MAF) sensor terminal #4. Check for a short-circuit to ground.

Check the power supply cable between control module terminal #A39 (#A39) and boost pressure sensor terminal #3. Check for a short-circuit to ground.

Check the power supply cable between control module terminal #A39 (#A39) and air conditioning (A/C) pressure sensor terminal #3. Check for a short-circuit to ground.

HINT: Read off the voltage of the 5-volt power supply by clicking on the VCT2000 symbol.

Remedy as necessary.

Other information

1. To connect the breakout box, 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. For the location of components on 5 cylinder engines, see «Location of components»(ref-461673-S37190921092012040200000)
5. For the location of components on 6 cylinder turbocharged engines: For 6 cylinder turbocharged engines -2001, see «Location of components»(ref-440286-S18591874812011121400000) For 6 cylinder turbocharged engines 2002, see «Location of components, engine compartment»(ref-440286-S07948714472011121400000) For 6 cylinder turbocharged engines 2003-, see «Location of components, engine compartment»(ref-440286-S42548706262011121400000) .
6. To access or replace the boost pressure sensor, see «Temperature and pressure sensor, replacing»(ref-461759-S30434624902012040200000)
7. See «Contents»(ref-440209-S18666729612011121400000) .

1. Continue Refer to «Verification»(ref-440291-S00000695172011121400000)

1. Ignition off
2. Check that the stop lamp switch is correctly installed. Check the resistance of the stop lamp switch with the switch pressed in and with the switch released. Take readings between terminals #1 and #5 (component side) on the stop lamp switch. HINT: The stop lamp switch must be closed when the brake pedal is depressed. The resistance of the stop lamp switch must be infinite when the brake pedal is unaffected. Check the stop lamp switch and engine control module (ECM) connectors. Check for contact resistance. Check for oxidation. Check the cable between stop lamp switch terminal #5 (cable harness side) and engine control module (ECM) terminal #B26 (#B36). Check for an open-circuit. Check for a short-circuit to ground. Check for a short-circuit to supply voltage. Check central electronic module (CEM) connector B. Check for contact resistance and oxidation. Check the cable between stop lamp switch terminal #5 (cable harness side) and central electronic module (CEM) terminal #4B. Check for an open-circuit. Check for a short-circuit to ground. Check for a short-circuit to supply voltage. 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) . For resistance values: «Component specifications»(ref-461750-S34427939622012040200000) See «Central electronic module (CEM), replacing»(ref-461683-S35742770022012040200000) See «Contents»(ref-440209-S18666729612011121400000)

1. Continue Refer to «Verification»(ref-440291-S23268247032011121400000)

Checking the wiring and components

Electronic throttle module (ETM) or Engine control module (ECM) does not work especially well together with CAN-high speed net. The two control modules monitor the CAN-high speed net continuously and are very sensitive to interference on the network. The two control modules will generate diagnostic trouble codes very quickly, if they detect problems on the network and will then reconfigure the system so that it is still possible to drive the vehicle, but then with reduced functionality. If Engine control module (ECM) or Electronic throttle module (ETM) detects a problem on the CAN-bus, this does not indicate that they have caused the interference. Most probable is that, since these control modules are the most sensitive on the CAN-high speed net, they will then also be the first that generate diagnostic trouble code when there is interference on the CAN-net.

As the information states, many of the CAN- and throttle module-related diagnostic trouble codes can be generated due to communication in the CAN-network has been interfered with or interrupted for some reason. Thus, the reconfiguration that takes place does not indicate the cause. Therefore, troubleshoot diagnostic trouble codes for the CAN-net first in all control modules, using troubleshooting for these.

S60/V70 (00-)/V70 XC (01-)/S80 (-06)

HINT: If there are diagnostic trouble codes stored in central electronic module (CEM) that indicate incorrect communication in CAN-high speed net, troubleshoot according to these before the following troubleshooting is performed. If there are stored diagnostic trouble codes, this indicates that the problem has existed for a longer time, more than 5 seconds. However, if no diagnostic trouble codes are stored, then this indicates that the problem is of a brief nature, shorter time than 5 seconds, likely caused by very brief interference, open circuit or short-circuiting in leads or connections.

S70/C70/V70 (-00)/V70 XC (-00)

HINT: If there are diagnostic trouble codes stored in Driver information module (DIM) that indicate incorrect communication in CAN-high speed net, troubleshoot according to these before the following troubleshooting is performed. If there are stored diagnostic trouble codes, this indicates that the problem has existed for a longer time, more than 5 seconds. However, if no diagnostic trouble codes are stored, then this indicates that the problem is of a brief nature, shorter time than 5 seconds, likely caused by very brief interference, open circuit or short-circuiting in leads or connections.

If the VIDA-station with VCT2000 (Volvo Communication Tool 2000) is connected to the vehicle when the battery voltage is low, this may generate diagnostic trouble codes. VCT2000 receives voltage feed from the vehicle, and thus both VCT2000 and control modules can be interfered with and themselves generate interference when their feed voltages are low, (especially when trying to start and the battery is poorly charged). In certain cases, for troubleshooting of a CAN-related diagnostic trouble code, verify using counter and frozen values that the diagnostic trouble code is relevant and not stored during the time in the workshop.

Diagnostic trouble codes generated during troubleshooting can be identified using the frozen values and counters that are stored together with the diagnostic trouble code. Primarily driving distance is to be used to decide if the diagnostic trouble code is generated in the workshop or not. Compare the driving distance in frozen values with the driving distance in driver information module (DIM). If these do not differ too much, it is likely that the diagnostic trouble code was generated during the time that the vehicle was in the workshop. If the driving distance is 0 km/miles, this indicates that the problem has occurred at the control modules' start-up, when a correct driving distance not yet has been received from central electronic module (CEM) or Driver information module (DIM). In these cases, counter 5 can be used to determine when the problem was generated. This prevents fault-tracing an irrelevant code. The risk with too low system voltage in the vehicle can be minimized using a battery charger. In this way voltage is kept stable, if troubleshooting goes on for an extended period of time.

Note. Only use battery chargers that have been approved by Volvo, since too high voltages can cause problems and generate diagnostic trouble codes in the vehicle.

1. Check the connector on the electronic throttle module (ETM). Check for contact resistance and oxidation. In particular, check terminals #3 (CAN H) and #4 (CAN L), #5 (ground) and #6 (voltage).
2. Check the connector on the engine control module (ECM). Check for contact resistance and oxidation. In particular check terminals #A37 (#A37) (CAN H) and #A55 (#A55) (CAN L). In particular, check the wiring, pins and terminals for damage. Check that they are properly inserted into the connector. Check that the cable is properly connected to the pin or terminal.
3. Check the CAN H cable between electronic throttle module (ETM) terminal #3 and engine control module (ECM) #A37 (#A37). Check for an open-circuit. Check for a short-circuit to ground. Check for a short-circuit to supply voltage.
4. Check the CAN L cable between electronic throttle module (ETM) terminal #4 and engine control module (ECM) #A55 (#A55). Check for an open-circuit. Check for a short-circuit to ground. Check for a short-circuit to supply voltage.
5. Check the voltage supply cable between electronic throttle module (ETM) terminal #6 and system relay terminal #3 (87). Check for an open-circuit. HINT: With the ignition on, the voltage must be approximately battery voltage between electronic throttle module (ETM) terminal #6 and ground.
6. Check the ground lead between electronic throttle module (ETM) terminal #5 and the car body. Check for an open-circuit. Check for a short-circuit to supply voltage.

If no fault is detected in the above fault-tracing, the fault may be because there was a delay before the system relay switched on. This delay may be due to low battery voltage and/or a mechanical fault in the system relay.

HINT: For markets where upgraded software, released during year 2006 or later, is available, the solution may be to download the upgraded software. In the upgraded software certain adjustments have been made to make it more tolerant against brief CAN-interference. See conditions for respective diagnostic trouble code, for more detailed information about what adjustments have been performed.

Remedy as necessary.

Other information

1. See «Identifying upgraded software ECM/ETM»(ref-461749-S35343891072012040200000)
2. See «Checking wiring and terminals»(ref-440209-S33835172972011121400000)

Choose No to troubleshoot the whole CAN-net.

Note. Then, the information shown to the CAN-high speed net is adapted for S60/V70 (00-)/V70 XC (01-)/S80 (-06), but also applies in applicable parts for S70/C70/V70 (-00)/V70 XC.

Scheme 292

Was a fault detected?

1. YES OKAY: Troubleshooting has been completed.
2. NO Refer to «Faulty communication»(ref-440291-S28797681252012030700000)