Home ReviewsRefund
Home/Volvo/V50/Volvo V50 I рестайлинг (2007-2012)/Repair manual/Testing & Diagnostics/Engine Control Module (ECM) Diagnostic Trouble Codes - 9 of…
Contents Section: Testing & Diagnostics All sections

Engine Control Module (ECM) Diagnostic Trouble Codes - 9 of 9: Wiring Volvo V50 I рестайлинг

Testing & Diagnostics ~1576 words

CHECKING THE COMPONENT AND WIRING

  1. Ignition off
  2. Check the accelerator pedal (AP) position sensor connector. Check for contact resistance and oxidation. Check the power supply cable (12 V) between accelerator pedal (AP) position sensor terminal #6 (wiring side) and the relevant fuse for the circuit. Check for a short-circuit to ground. Check for an open-circuit. Check that the fuse for the circuit is not damaged. Check the ground lead for power supply (12 V) between accelerator pedal (AP) position sensor terminal #4 (wiring side) and the relevant ground terminal. Check for contact resistance and oxidation. Check for an open-circuit. HINT: With the ignition on, the power supply to the accelerator pedal (AP) position sensor must be approximately 12 V measured between accelerator pedal (AP) position sensor terminals #4 (wiring side) and #6 (wiring side). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-466591-S26645247992012042500000) see «SIGNAL SPECIFICATION»(ref-466592-S15475582172012042500000) see «ACCELERATOR PEDAL»(ref-466672-S34630835312012042500000) see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)
  1. Continue Refer to «CHECKING THE CONNECTORS AND CABLES»(ref-466673-S01171414132012042500000)
  1. Ignition off
  2. Check the accelerator pedal (AP) position sensor connector. Check for contact resistance and oxidation. Check the power supply cable (12 V) between accelerator pedal (AP) position sensor terminal #6 (wiring side) and the relevant fuse for the circuit. Check for a short-circuit to ground. Check for an open-circuit. Check that the fuse for the circuit is not damaged. Check the ground lead for power supply (12 V) between accelerator pedal (AP) position sensor terminal #4 (wiring side) and the relevant ground terminal. Check for contact resistance and oxidation. Check for an open-circuit. HINT: With the ignition on, the power supply to the accelerator pedal (AP) position sensor must be approximately 12 V measured between accelerator pedal (AP) position sensor terminals #4 (wiring side) and #6 (wiring side). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-466591-S26645247992012042500000) see «SIGNAL SPECIFICATION»(ref-466592-S26583508152012042500000) see «ACCELERATOR PEDAL»(ref-466672-S34630835312012042500000) see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)
  1. Continue Refer to «CHECKING THE CONNECTORS AND CABLES»(ref-466673-S17416113262012042500000)
  1. Ignition off. Check the power supply cable (12 V) between accelerator pedal (AP) position sensor terminal #6 (wiring side) and the relevant fuse for the circuit. Check for a short-circuit to ground. Check for an open-circuit. Check that the fuse for the circuit is not damaged. Check the ground lead for power supply (12 V) between accelerator pedal (AP) position sensor terminal #4 (wiring side) and the relevant ground terminal. Check for contact resistance and oxidation. Check for an open-circuit. HINT: With the ignition on, the power supply to the accelerator pedal (AP) position sensor must be approximately 12 V measured between accelerator pedal (AP) position sensor terminals #4 (wiring side) and #6 (wiring side). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-466591-S26645247992012042500000) see «SIGNAL SPECIFICATION»(ref-466592-S15475582172012042500000) see «ACCELERATOR PEDAL»(ref-466672-S34630835312012042500000) see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)
  1. Continue Refer to «CHECKING THE CONNECTORS AND CABLES»(ref-466673-S28639913672012042500000)
  1. Ignition off. Check the power supply cable (12 V) between accelerator pedal (AP) position sensor terminal #6 (wiring side) and the relevant fuse for the circuit. Check for a short-circuit to ground. Check for an open-circuit. Check that the fuse for the circuit is not damaged. Check the ground lead for power supply (12 V) between accelerator pedal (AP) position sensor terminal #4 (wiring side) and the relevant ground terminal. Check for contact resistance and oxidation. Check for an open-circuit. HINT: With the ignition on, the power supply to the accelerator pedal (AP) position sensor must be approximately 12 V measured between accelerator pedal (AP) position sensor terminals #4 (wiring side) and #6 (wiring side). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-466591-S26645247992012042500000) see «SIGNAL SPECIFICATION»(ref-466592-S26583508152012042500000) see «ACCELERATOR PEDAL»(ref-466672-S34630835312012042500000) see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)
  1. Continue Refer to «CHECKING THE CONNECTORS AND CABLES»(ref-466673-S41619760382012042500000)
  1. Ignition off
  2. Check the accelerator pedal (AP) position sensor connector. Check for contact resistance and oxidation. Check the power supply cable (12 V) between accelerator pedal (AP) position sensor terminal #6 (wiring side) and the relevant fuse for the circuit. Check for a short-circuit to ground. Check for an open-circuit. Check that the fuse for the circuit has not blown. Check the ground lead for power supply (12 V) between accelerator pedal (AP) position sensor terminal #4 (wiring side) and the relevant ground terminal. Check for contact resistance and oxidation. Check for an open-circuit. HINT: With the ignition on, the power supply to the accelerator pedal (AP) position sensor must be approximately 12 V measured between accelerator pedal (AP) position sensor terminals #4 (wiring side) and #6 (wiring side). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-466591-S26645247992012042500000) see «SIGNAL SPECIFICATION»(ref-466592-S15475582172012042500000) see «ACCELERATOR PEDAL»(ref-466672-S34630835312012042500000) see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)
  1. Continue Refer to «CHECKING THE CONNECTORS AND CABLES»(ref-466673-S34571254932012042500000)
  1. Ignition off
  2. Check the accelerator pedal (AP) position sensor connector. Check for contact resistance and oxidation. Check the power supply cable (12 V) between accelerator pedal (AP) position sensor terminal #6 (wiring side) and the relevant fuse for the circuit. Check for a short-circuit to ground. Check for an open-circuit. Check that the fuse for the circuit has not blown. Check the ground lead for power supply (12 V) between accelerator pedal (AP) position sensor terminal #4 (wiring side) and the relevant ground terminal. Check for contact resistance and oxidation. Check for an open-circuit. HINT: With the ignition on, the power supply to the accelerator pedal (AP) position sensor must be approximately 12 V measured between accelerator pedal (AP) position sensor terminals #4 (wiring side) and #6 (wiring side). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-466591-S26645247992012042500000) see «SIGNAL SPECIFICATION»(ref-466592-S26583508152012042500000) see «ACCELERATOR PEDAL»(ref-466672-S34630835312012042500000) see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)
  1. Continue Refer to «CHECKING THE CONNECTORS AND CABLES»(ref-466673-S15957798882012042500000)
  1. Ignition off
  2. Check the accelerator pedal (AP) position sensor connector. Check for contact resistance and oxidation. Check the power supply cable (12 V) between accelerator pedal (AP) position sensor terminal #6 (wiring side) and the relevant fuse for the circuit. Check for a short-circuit to ground. Check for an open-circuit. Check that the fuse for the circuit is not damaged. Check the ground lead for power supply (12 V) between accelerator pedal (AP) position sensor terminal #4 (wiring side) and the relevant ground terminal. Check for contact resistance and oxidation. Check for an open-circuit. HINT: With the ignition on, the power supply to the accelerator pedal (AP) position sensor must be approximately 12 V measured between accelerator pedal (AP) position sensor terminals #4 (wiring side) and #6 (wiring side). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-466591-S26645247992012042500000) see «SIGNAL SPECIFICATION»(ref-466592-S15475582172012042500000) see «ACCELERATOR PEDAL»(ref-466672-S34630835312012042500000) see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)
  1. Continue Refer to «CHECKING THE CONNECTORS AND CABLES»(ref-466673-S37065914182012042500000)
  1. Ignition off
  2. Check the accelerator pedal (AP) position sensor connector. Check for contact resistance and oxidation. Check the power supply cable (12 V) between accelerator pedal (AP) position sensor terminal #6 (wiring side) and the relevant fuse for the circuit. Check for a short-circuit to ground. Check for an open-circuit. Check that the fuse for the circuit is not damaged. Check the ground lead for power supply (12 V) between accelerator pedal (AP) position sensor terminal #4 (wiring side) and the relevant ground terminal. Check for contact resistance and oxidation. Check for an open-circuit. HINT: With the ignition on, the power supply to the accelerator pedal (AP) position sensor must be approximately 12 V measured between accelerator pedal (AP) position sensor terminals #4 (wiring side) and #6 (wiring side). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-466591-S26645247992012042500000) see «SIGNAL SPECIFICATION»(ref-466592-S26583508152012042500000) see «ACCELERATOR PEDAL»(ref-466672-S34630835312012042500000) see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)
  1. Continue Refer to «CHECKING THE CONNECTORS AND CABLES»(ref-466673-S13270400582012042500000)

CHECKING THE WIRING

The diagnostic trouble code (DTC) is stored if there is no communication between the engine control module (ECM) and the alternator control module (ACM). This may be due to a fault in the signal cable between the control modules or a damaged communication device in one or both of the control modules.

HINT: This diagnostic trouble code (DTC) can be stored if a generator (GEN) with a charge regulator not intended for LIN communication is installed.

Check the connector on the alternator control module (ACM). Check for contact resistance and oxidation.

Check the signal cable. Check for an open-circuit. Check for a short-circuit to ground. Check for a short-circuit to supply voltage.

Take readings between

  1. Engine control module (ECM) #A88 (#B28) and Alternator control module (ACM) #A2.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-466591-S26645247992012042500000)
  2. see «SIGNAL SPECIFICATION»(ref-466592-S15475582172012042500000)
  3. see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)

Was a fault detected?

  1. YES Refer to «VERIFICATION»(ref-466673-S38042514132012042500000)
  2. NO Refer to «REPLACING THE CONTROL MODULE»(ref-466673-S26908516132012042500000)

The diagnostic trouble code (DTC) is stored if there is no communication between the engine control module (ECM) and the alternator control module (ACM). This may be due to a fault in the signal cable between the control modules or a damaged communication device in one or both of the control modules.

HINT: This diagnostic trouble code (DTC) can be stored if a generator (GEN) with a charge regulator not intended for LIN communication is installed.

Check the connector on the alternator control module (ACM). Check for contact resistance and oxidation.

Check the signal cable. Check for an open-circuit. Check for a short-circuit to ground. Check for a short-circuit to supply voltage.

Take readings between

  1. Engine control module (ECM) #A88 (#B28) and Alternator control module (ACM) #A2.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-466591-S26645247992012042500000)
  2. see «SIGNAL SPECIFICATION»(ref-466592-S26583508152012042500000)
  3. see «CHECKING WIRING AND TERMINALS»(ref-466589-S38415998382012042500000)

Was a fault detected?

  1. YES Refer to «VERIFICATION»(ref-466673-S35834897272012042500000)
  2. NO Refer to «REPLACING THE CONTROL MODULE»(ref-466673-S01173923062012042500000)

More articles — Engine Control Module (ECM) Diagnostic Trouble Codes - 9 of 9