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Steering Angle Sensor (Sas) Diagnostic Trouble Codes: Other Volvo XC90 I

Electronic Steering 1 illustration ~7636 words

INFORMATION

The steering wheel angle sensor module (SAS) has registered that information about the car configuration from the central electronic module (CEM) is missing.

Exit fault-tracing and fault-trace the central electronic module (CEM) system.

COMMUNICATION FAULT

see COMMUNICATION FAULT

FAULT-TRACING INFORMATION

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

VERIFICATION

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off steering wheel angle signal R3.
  5. Turn the steering wheel to full lock in both directions. The value should change between OFF and ON.

Does the value change?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S12106169002012060500000)

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.

The steering wheel angle sensor module (SAS) has registered that information about the car configuration from the central electronic module (CEM) is missing or incorrect.

Exit fault-tracing and fault-trace the central electronic module (CEM) system.

FAULTY SIGNAL

see FAULTY SIGNAL

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

CHECKING THE CONNECTORS

  1. Ignition off
  2. Check the ABS control module and steering wheel angle sensor connector. Check for contact resistance and oxidation. See «CHECKING WIRING AND TERMINALS. PERMANENT FAULT»(ref-494744-S01982450142012081600000)
  3. Reinstall the components, reconnect the connectors etc.
  4. Ignition on
  5. Read off the status of steering wheel angle signal R4. Turn the steering wheel in both directions and check that the value changes between ON and OFF. Other information: To connect the breakout box, see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000) To disconnect the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) For information about signals, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) .

Does the value change between OFF and ON?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING WIRING AND SENSORS»(ref-476858-S07519139902012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off steering wheel angle signal R4.
  5. Turn the steering wheel to full lock in both directions. The value should change between OFF and ON.

Does the value change?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S31752376522012060500000)

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.

The steering wheel angle sensor module (SAS) has registered that information about the ignition key position from the central electronic module (CEM) is missing or incorrect.

Exit fault-tracing and fault-trace the central electronic module (CEM) system.

SIGNAL MISSING

see SIGNAL MISSING

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

  1. Ignition on
  2. Read off the status of steering wheel angle signal R4. Turn the steering wheel in both directions and check that the value changes between ON and OFF. Other information: To access the connector for the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To access the connector for the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) For information about signals, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) and «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .

Does the value change between OFF and ON?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING WIRING AND SENSORS»(ref-476858-S41964115812012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off steering wheel angle signal R4.
  5. Turn the steering wheel to full lock in both directions. The value should change between OFF and ON.

Does the value change?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S04747803672012060500000)

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.

INTERNAL FAULT

see INTERNAL FAULT

see INTERNAL FAULT

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

CHECKING THE SIGNAL

  1. Ignition off
  2. Check the control module for the steering wheel angle sensor and the steering wheel module (SWM) connectors. Check for contact resistance and oxidation according to «CONTACT RESISTANCE AND OXIDATION»(ref-494744-S00891297232012081600000)
  3. Ignition on
  4. Read off the status of steering wheel angle signals A, B, IX and IY
  5. Carefully turn the steering wheel to the limit positions in both directions and check that the value changes between ON and OFF. If the value changes between OFF and ON, the cause of the fault was contact resistance or oxidation in the control module or in the steering wheel angle sensor connector. Other information: To disconnect the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To disconnect the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) For information about signals for the control module for the steering wheel angle sensor, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .

Do the values change between OFF and ON?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING WIRING AND SENSORS»(ref-476858-S00836268382012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Turn the steering wheel slowly to full lock in both directions. The values should alternate between OFF and ON.

Do the values alternate between OFF and ON?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S40214074592012060500000)

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.

HINT: The control module for the steering wheel angle sensor has been unable to determine whether the fault is active or not. Therefore a test routine will be run.

  1. Ignition on
  2. Turn the steering wheel to the limit position in both directions twice
  3. Activate the test routine. The fault is active. Refer to «SHORT-CIRCUIT BETWEEN THE SIGNAL CABLES»(ref-476858-S00642900602012060500000) and «CHECKING WIRING AND TERMINALS»(ref-476858-S21240333532012060500000)

SHORT-CIRCUIT BETWEEN THE SIGNAL CABLES

  1. Ignition off
  2. Check the connectors for the control module for the steering wheel angle sensor and the steering wheel module (SWM). Check for contact resistance and oxidation according to «CONTACT RESISTANCE AND OXIDATION»(ref-494744-S00891297232012081600000)
  3. Ignition on
  4. Read off the status of steering wheel angle signals R1/R2/R3/R4
  5. Carefully turn the steering wheel to the limit positions in both directions and check that the value changes between ON and OFF. If the value changes between OFF and ON, the cause of the fault was contact resistance or oxidation in the control module or in the steering wheel angle sensor connector. Other information: To disconnect the control module for the steering wheel angle sensor, see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000) To disconnect the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) For information about signals for the control module for the steering wheel angle sensor, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .

Do the signals change between OFF and ON?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING WIRING AND SENSORS»(ref-476858-S25374925822012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off steering wheel angle signal R1/R2/R3/R4.
  5. Turn the steering wheel slowly to full lock in both directions. The value should change between OFF and ON.

Do the values alternate between OFF and ON?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S35109106982012060500000)

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.

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off steering wheel angle signal R1/R2/R3/R4.
  5. Turn the steering wheel slowly to full lock in both directions. The value should change between OFF and ON.

Do the values alternate between OFF and ON?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S02329905302012060500000)

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.

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

  1. Ignition off
  2. The control module for the steering wheel angle sensor disconnected
  3. Steering wheel module (SWM) disconnected
  4. Connect the breakout box to the control module for the steering wheel angle sensor and to the steering wheel module (SWM). Check the wiring between the control module for the steering wheel angle sensor terminal #3 (terminal (#A27) and steering wheel module (SWM) terminal #5 (terminal #A5) terminal #4 (terminal (#A28) and steering wheel module (SWM) terminal #3 (terminal #A3) terminal #10 (terminal (#A34) and steering wheel module (SWM) terminal #2 (terminal #A2) #11 (#A35) and steering wheel module (SWM) #17 (#A17) check for a short-circuit to each other. Try replacing the steering wheel angle sensor if no faults are found in the wiring between the control module for the steering wheel angle sensor and the steering wheel module (SWM). Other information: To connect the breakout box to the control module for the steering wheel angle sensor, see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000) To connect the breakout box to the steering wheel module (SWM), see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000) To replace the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) For information about signals for the control module for the steering wheel angle sensor, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «VERIFICATION»(ref-476858-S26654408582012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Turn the steering wheel slowly to full lock in both directions. The values should alternate between OFF and ON.

Do the values alternate between OFF and ON?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S37717894352012060500000)

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.

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Turn the steering wheel to full lock in both directions.
  5. Read the status of the diagnostic trouble code.

Is the status of the diagnostic trouble code intermittent?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S15005587222012060500000)

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.

  1. Ignition off
  2. Check the control module for the steering wheel angle sensor and the steering wheel module (SWM) connectors. Check for contact resistance and oxidation according to «CONTACT RESISTANCE AND OXIDATION»(ref-494744-S00891297232012081600000)
  3. Reinstall the components, reconnect the connectors etc.
  4. Ignition on
  5. Read off the current. Turn the steering wheel to the limit position in both directions. The current should be between 11 and 30 mA. If the current is OK, the cause of the fault was contact resistance or oxidation in the connectors for the control module for the steering wheel angle sensor or in the steering wheel module (SWM). Other information: To access the connector for the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To access the connector for the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000) To disconnect the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) For information about signals, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) .

Is the value OK?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING WIRING AND SENSORS»(ref-476858-S14282754572012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off the current in the circuit. Turn the steering wheel to end stop in both directions. The current should oscillate between 11 and 30 mA.

Is the current OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S18195349382012060500000)

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.

  1. Ignition off
  2. Check the control module for the steering wheel angle sensor and the steering wheel module (SWM) connectors. Check for contact resistance and oxidation according to «CONTACT RESISTANCE AND OXIDATION»(ref-494744-S00891297232012081600000)
  3. Reinstall the components, reconnect the connectors etc.
  4. Ignition on
  5. Read off the current. Turn the steering wheel to the limit position in both directions. The current should be between 11 and 30 mA. If the current is OK, the problem was caused by contact resistance or oxidation. Other information: To access the connector for the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To access the connector for the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To connect the breakout box, see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000) To disconnect the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) For information about signals, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) .

Is the value OK?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING WIRING AND SENSORS»(ref-476858-S32092487112012060500000)

Scheme 213

Scheme 213
Scheme 213
  1. Ignition off
  2. The control module for the steering wheel angle sensor disconnected
  3. Steering wheel module (SWM) disconnected
  4. Connect the breakout box to the control module for the steering wheel angle sensor and to the steering wheel module (SWM) Check the wiring between the control module for the steering wheel angle sensor terminal #8 (terminal (#A32) and steering wheel module (SWM) terminal #7 (terminal #A7). Check for a short-circuit to supply voltage according to «SHORT-CIRCUIT TO SUPPLY VOLTAGE. PERMANENT FAULTS»(ref-494744-S38605125602012081600000) . Try replacing the steering wheel angle sensor if no faults are found in the wiring between the control module for the steering wheel angle sensor and the steering wheel module (SWM). Other information: To access the connector for the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To access the connector for the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To connect the breakout box to the control module for the steering wheel angle sensor, see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000) To replace the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) For information about signals, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) .
  1. Continue Refer to «VERIFICATION»(ref-476858-S01996317052012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off the current in the circuit. Turn the steering wheel to end stop in both directions. The current should oscillate between 11 and 30 mA.

Is the current OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S31620898622012060500000)

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 STEERING WHEEL ANGLE

  1. Ignition off
  2. Disconnect the connector for the control module for the steering wheel angle sensor
  3. Disconnect the connector for the steering wheel module (SWM)
  4. Check the connectors for control module for the steering wheel angle sensor and for the steering wheel angle sensor. Check for contact resistance and oxidation according to «CONTACT RESISTANCE AND OXIDATION»(ref-494744-S00891297232012081600000)
  5. Reinstall the components, reconnect the connectors etc.
  6. Ignition on
  7. Read off the steering wheel angle. Turn the steering wheel between both limit positions. Check that the steering wheel angle is updated and reaches a maximum of +600° or -600°. Other information: To disconnect the connector for the control module for the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) To disconnect the connector for the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) .

Was the angle in excess of 600° in either direction?

  1. YES Refer to «CHECKING THE INSTALLATION»(ref-476858-S15486482972012060500000)
  2. NO OKAY: Troubleshooting has been completed.
  1. Ignition off
  2. Reinstall the components, reconnect the connectors etc.
  3. Ignition on
  4. Read off the steering wheel angle. Turn the steering wheel between both lock positions. Check that the steering wheel angle is updated and reaches a maximum of +600° or -600°.

Was the steering wheel angle OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S41012333132012060500000)

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.

The diagnostic trouble code shows that the steering wheel has turned at a speed of more than 2050°/s. The probable cause of the diagnostic trouble code is that the driver has hit a curb or stone, for example, causing the angle speed of the wheels and steering wheel to change severely.

Check that the fore carriage adjustment has not changed and that the wheels have not been damaged.

  1. Ignition off
  2. Check the connectors for the control module for the steering wheel angle sensor and for the steering wheel module (SWM). Check for contact resistance and oxidation according to «CONTACT RESISTANCE AND OXIDATION»(ref-494744-S00891297232012081600000)
  3. Reinstall the components, reconnect the connectors etc.
  4. Test drive the car. See «TEST DRIVING»(ref-476858-S17873396262012071100000)
  5. Ignition on
  6. Read off diagnostic trouble codes (DTCs). If the diagnostic trouble code (DTC) displays an intermittent status, the cause of the fault was probably contact resistance or oxidation in the connector for the control module for the steering wheel angle sensor or in the steering wheel module (SWM) Other information: To disconnect the control module for the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) To disconnect the steering wheel module (SWM), see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) For information about signals for the control module for the steering wheel angle sensor, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .

Is the status of the diagnostic trouble code (DTC) intermittent?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING WIRING AND SENSORS»(ref-476858-S03176924432012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off steering wheel angle signal A.
  5. Turn the steering wheel to full lock in both directions. The value should change between OFF and ON.

Does the value change?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S23315427772012060500000)

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.

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

  1. Ignition off
  2. Reinstall the components, reconnect the connectors etc.
  3. Ignition on
  4. Read off steering wheel angle signal A. Turn the steering wheel to the limit positions in both directions and check that the value changes between ON and OFF. Other information: To disconnect the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To disconnect the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) For information about signals for the control module for the steering wheel angle sensor, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .

Does the value change between OFF and ON?

  1. YES Refer to «VERIFICATION»(ref-476858-S15870341822012060500000)
  2. NO Refer to «CHECKING WIRING AND SENSORS»(ref-476858-S24043127312012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off steering wheel angle signal A.
  5. Turn the steering wheel to full lock in both directions. The value should change between OFF and ON.

Does the value change?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S17444417752012060500000)

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.

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

  1. Ignition off
  2. Reinstall the components, reconnect the connectors etc.
  3. Ignition on
  4. Read off steering wheel angle signal B. Turn the steering wheel to the limit positions in both directions and check that the value changes between ON and OFF. Other information: To disconnect the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To disconnect the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) For information about signals for the control module for the steering wheel angle sensor, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .

Does the value change between OFF and ON?

  1. YES Refer to «VERIFICATION»(ref-476858-S17812958972012060500000)
  2. NO Refer to «CHECKING WIRING AND SENSORS»(ref-476858-S31725578932012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off steering wheel angle signal B.
  5. Turn the steering wheel to full lock in both directions. The value should change between OFF and ON.

Does the value change?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S27710242012012060500000)

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.

If the fault is intermittent, do not verify fault-tracing if the fault does not recur.

It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).

  1. Ignition off
  2. Check the control module for the steering wheel angle sensor and the steering wheel module (SWM) connectors. Check for contact resistance and oxidation according to «CONTACT RESISTANCE AND OXIDATION»(ref-494744-S00891297232012081600000)
  3. Reinstall the components, reconnect the connectors etc.
  4. Ignition on
  5. Read off diagnostic trouble codes (DTCs). If the diagnostic trouble code (DTC) displays an intermittent status, the cause of the fault was probably contact resistance or oxidation in the connector for the control module for the steering wheel angle sensor or in the steering wheel module (SWM). Other information: To disconnect the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To disconnect the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) For information about signals for the control module for the steering wheel angle sensor, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .

Does the diagnostic trouble code (DTC) display an intermittent fault?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING WIRING AND SENSORS»(ref-476858-S01287639772012060500000)

HINT: After the repair it is necessary to check that the fault has been rectified.

  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read off steering wheel angle signal A.
  5. Turn the steering wheel to full lock in both directions. The value should change between OFF and ON.

Does the value change?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S40496648842012060500000)

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.

There is no fault-tracing for this diagnostic fault code (DTC).

For further information on this diagnostic trouble code, see Diagnostic trouble code (DTC) information.

CHECKING THE CONNECTED BATTERY CHARGER AND STARTER UNIT

Note. When a battery charger or a starter unit has been connected to the battery it is important to check that the proper voltage has been set. Charging with too high a voltage may cause a diagnostic trouble code to be stored.

Check that the battery charger/starter unit is connected and that the correct voltage is set.

Check the charging system for too high a charging voltage.

Do the necessary corrective action.

  1. Continue Refer to «VERIFICATION»(ref-476858-S11213230302012060500000)

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.

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reinstall the components, reconnect the connectors etc.
  3. Test drive the car according to «TEST DRIVING»(ref-494809-S19425031902012081600000)
  4. Ignition on. Read off the status of the diagnostic trouble code (DTC).

Is the status intermittent?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S19218499992012060500000)

CHECKING THE VOLTAGE

  1. Ignition off
  2. Disconnect the connector for the control module for the steering wheel angle sensor
  3. Disconnect the connector for the steering wheel module (SWM)
  4. Check the connectors for control module for the steering wheel angle sensor and for the steering wheel angle sensor. Check for contact resistance and oxidation according to «CONTACT RESISTANCE AND OXIDATION»(ref-494744-S00891297232012081600000)
  5. Reinstall the components, reconnect the connectors etc.
  6. Ignition on
  7. Read off the voltage over the central electronic module (CEM) and the control module for the steering wheel angle sensor. The voltage must be approximately 12 V for both the central electronic module (CEM) and the control module for the steering wheel angle sensor. Other information: To disconnect the connector for the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To disconnect the connector for the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) .

Was the voltage OK?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING THE WIRING»(ref-476858-S29724140372012060500000)
  1. Ignition off.
  2. Connect the connectors, install the components, etc.
  3. Ignition on.
  4. Read the voltage over the central electronic control unit (CEM) and the steering wheel angle sensor (SAS) control unit. Voltage should be approximately 12 V for both the central electronic control unit (CEM) and the steering wheel angle sensor control unit.

Is voltage OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S26673268222012060500000)

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.

The control module has previously registered a fault. The fault is now no longer present.

CHECK THE CONTROL MODULE FOR THE STEERING WHEEL ANGLE SENSOR

  1. Ignition off
  2. Disconnect the connector for the steering wheel module (SWM)
  3. Wait 150 seconds
  4. Connect the connector to the steering wheel module (SWM)
  5. Ignition on
  6. Read off diagnostic trouble codes (DTCs) for the control module for the steering wheel angle sensor. The EEPROM in the control module stores diagnostic trouble codes (DTC), diagnostic trouble code (DTC) counters and frozen values. If the memory circuit is malfunctioning, no information can be read from the control module. Simulate a fault to check the condition of the memory. This stores a diagnostic trouble code (DTC). The memory can then be checked by reading off the diagnostic trouble code (DTC) information. NOTE: A diagnostic trouble code (DTC) will be stored in the steering wheel module (SWM) when the module is disconnected. Therefore any diagnostic trouble codes (DTCs) in the system for the steering wheel module (SWM) must be erased. Other information: To disconnect and connect the connector for the steering wheel module (SWM), see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) .

Can the diagnostic trouble codes (DTCs) be read off?

  1. YES Refer to «INFORMATION»(ref-476858-S30921002152012060500000)
  2. NO Refer to «REPLACING THE CONTROL MODULE FOR THE STEERING WHEEL ANGLE SENSOR»(ref-476858-S19026860262012060500000)

REPLACING THE CONTROL MODULE FOR THE STEERING WHEEL ANGLE SENSOR

CAUTIONThe control modules are delivered without software. The control module must be programmed in order to function after replacement.

Other information

  1. For further information about programming and replacing the control module, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) .
  1. Continue Refer to «INFORMATION»(ref-476858-S30921002152012060500000)

In case of this defect, troubleshooting is not followed by verification.

The information can be displayed again or the fault-tracing for this fault can be interrupted.

see FAULTY SIGNAL

CHECKING THE FITTING OF THE STEERING ANGLE SENSOR (SAS)

Note. The trouble code indicates that the Steering Angle Sensor (SAS) is incorrectly fitted. It is very important that the switch roller/Steering Angle Sensor (SAS) is correctly fitted. If the unit is fitted with the rotating centre section displaced by one complete revolution, internal components can be damaged when the steering wheel is turned to full lock. If it is possible that the unit is incorrectly assembled, the switch roller must be replaced.

  1. Ignition off
  2. Align the wheels in the straight ahead position.
  3. Remove the steering wheel.
  4. Ignition on
  5. Turn the steering wheel by more than 5° in either direction to initiate the Steering Angle Sensor (SAS).
  6. Read the value of steering angle by clicking on the VCT2000 (Volvo Scan Tool) symbol. Check that the steering angle is 0° when the wheels are in the straight ahead position. If the steering angle is incorrect, position the wheels straight ahead and loosen the steering wheel. Then adjust the contact roller so that the yellow mark can be seen in the contact roller window when the contact roller locking screw is in the correct position. NOTE: If the ignition key is turned to position ll when the steering wheel is removed, trouble codes for the steering wheel switches are stored in the Central Electronic Module (CEM). Other information see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000)
  1. Continue Refer to «VERIFICATION»(ref-476858-S19277280862012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reconnect the connectors, components, etc.
  3. Ignition on
  4. Turn the steering wheel by more than 5° in either direction to initiate the Steering Angle Sensor (SAS).
  5. Read the value of steering angle by clicking on the VCT2000 symbol on VIDA (Volvo scan tool). Read the steering angle and check that it is 0° when the wheels are positioned straight ahead.

Is the steering angle 0° when the wheels are positioned straight ahead?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S32581023192012060500000)

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.

FAULT TRACING SAS-C008B64

see FAULT TRACING SAS-C008B64

see FAULT TRACING SAS-C008B64

The trouble code indicates that the steering wheel has been turned at a speed exceeding 1433°/second. The likely cause of the trouble code is that the driver has driven into an obstacle such as a curbstone which has caused a rapid movement of the steering wheel.

Check that the front suspension settings have not been affected or the wheels damaged.

Remedy as necessary.

FAULT TRACING SAS-C008C64

see FAULT TRACING SAS-C008C64

see FAULT TRACING SAS-C008C64

FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

STRUCTURE WEEK

  1. Update the software in the Steering wheel angle sensor module (SAS) if the vehicle's structure week is earlier than 200934. Checking the contact reel Start the engine with the vehicle's steering wheel in position straight ahead and then turn the steering wheel to full lock, first to the left and then to the right. Drive the car at over 10 km/h and steer completely to right and left full lock. Repeat steps 1-2 again, but instead begin with steering to full lock left and then do the same to full lock right. NOTE: Note that no anti-skid light turns on and that no message about anti-skid service is required is seen in Driver information module (DIM). If this happens, replace the contact reel.

Was the fault found?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING THE STATUS»(ref-476858-S42900365122012060500000)

CHECKING THE STATUS

  1. Ignition off
  2. Wait approximately 10 seconds.
  3. Engine running.
  4. Read the trouble code counter by clicking the VCT2000 symbol. The counters are used to determine the problem's status. For general information about the counters, see: «DESCRIPTION OF COUNTER»(ref-476858-S42283379562012071100000) Counters 5, 6 and 7 are not used during this check. Counter 1 indicates the number of drive cycles without fault since the fault was last validated. If the counter 1 is 0 it means that the problem is permanent. Replace contact reel/steering wheel angle sensor. If counter 1 is over 0, this indicates that the problem has not been detected in this driving cycle (intermittent problem). The problem has existed earlier but is not active right now. Then check counter 4 . Counter 4 indicates number of driving cycles with problem since the problem was validated for the first time. If the number of incorrect driving cycles is high, this indicates an intermittent recurring problem. Replace contact reel/steering wheel angle sensor. If the number of incorrect driving cycles is low, this indicates an intermittent temporary problem. No action. HINT: Counter 3 indicates number of driving cycles since first time that the problem occurred. If the value for counter 3 is divided by the value for counter 4, the intensity of the problem is obtained. The higher the value, the higher the problem intensity. A high problem intensity indicates that the malfunction recurs often. NOTE: If the trouble code returns after replacement of the switch roller/steering angle sensor, replace also the Steering Wheel Module (SWM). Remedy as necessary. Other information see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) The Steering Angle Sensor (SAS) is integrated in the Steering Wheel Module (SWM). When replacing the control module, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000)

READING OFF THE STRUCTURE WEEK

See VIDA/DIAGNOSTICS/DETAILS to see which structure week the vehicle has. VIDA is Volvo scan tool.

The following troubleshooting is adapted to structure week. Updated software for Steering wheel angle sensor module (SAS) was released structure week 201041.

Does the vehicle have the above structure week or later?

  1. YES Refer to «CHECKING THE STATUS»(ref-476858-S04011823692012060500000)
  2. NO Refer to «STRUCTURE WEEK»(ref-476858-S07668004722012060500000)
  1. Ignition off
  2. Wait approximately 10 seconds.
  3. Engine running.
  4. Read the trouble code counter by clicking the VCT2000 (Volvo Scan Tool) symbol. The counters are used to determine the problem's status. For general information about the counters, see: «DESCRIPTION OF COUNTER»(ref-476858-S42283379562012071100000) Counters 5, 6 and 7 are not used during this check. Counter 1 indicates the number of drive cycles without fault since the fault was last validated. If the counter 1 is 0 it means that the problem is permanent. Replace contact reel/steering wheel angle sensor. If counter 1 is over 0, this indicates that the problem has not been detected in this driving cycle (intermittent problem). The problem has existed earlier but is not active right now. Then check counter 4 . Counter 4 indicates number of driving cycles with problem since the problem was validated for the first time. If the number of incorrect driving cycles is high, this indicates an intermittent recurring problem. Replace contact reel/steering wheel angle sensor. If the number of incorrect driving cycles is low, this indicates an intermittent temporary problem. No action. HINT: Counter 3 indicates number of driving cycles since first time that the problem occurred. If the value for counter 3 is divided by the value for counter 4, the intensity of the problem is obtained. The higher the value, the higher the problem intensity. A high problem intensity indicates that the malfunction recurs often. NOTE: If the trouble code returns after replacement of the switch roller/steering angle sensor, replace also the Steering Wheel Module (SWM). Remedy as necessary. Other information see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) The Steering Angle Sensor (SAS) is integrated in the Steering Wheel Module (SWM). When replacing the control module, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) .
  1. Update the software in the Steering wheel angle sensor module (SAS) if the vehicle's structure week is earlier than 201041. Checking the contact reel Start the engine with the vehicle's steering wheel in position straight ahead and then turn the steering wheel to full lock, first to the left and then to the right. Drive the car at over 10 km/h and steer completely to right and left full lock. Repeat steps 1-2 again, but instead begin with steering to full lock left and then do the same to full lock right. NOTE: Note that no anti-skid light turns on and that no message about anti-skid service is required is seen in Driver information module (DIM). If this happens, replace the contact reel.

Was the fault found?

  1. YES OKAY: Troubleshooting has been completed.
  2. NO Refer to «CHECKING THE STATUS»(ref-476858-S04011823692012060500000)
  1. Ignition off
  2. Wait approximately 10 seconds.
  3. Engine running.
  4. Read the trouble code counter by clicking the VCT2000 (Volvo Scan Tool) symbol. The counters are used to determine the problem's status. For general information about the counters, see: «DESCRIPTION OF COUNTER»(ref-476858-S42283379562012071100000) Counters 5, 6 and 7 are not used during this check. Counter 1 indicates the number of drive cycles without fault since the fault was last validated. If the counter 1 is 0 it means that the problem is permanent. Replace contact reel/steering wheel angle sensor. If counter 1 is over 0, this indicates that the problem has not been detected in this driving cycle (intermittent problem). The problem has existed earlier but is not active right now. Then check counter 4 . Counter 4 indicates number of driving cycles with problem since the problem was validated for the first time. If the number of incorrect driving cycles is high, this indicates an intermittent recurring problem. Replace contact reel/steering wheel angle sensor. If the number of incorrect driving cycles is low, this indicates an intermittent temporary problem. No action. HINT: Counter 3 indicates number of driving cycles since first time that the problem occurred. If the value for counter 3 is divided by the value for counter 4, the intensity of the problem is obtained. The higher the value, the higher the problem intensity. A high problem intensity indicates that the malfunction recurs often. NOTE: If the trouble code returns after replacement of the switch roller/steering angle sensor, replace also the Steering Wheel Module (SWM). Remedy as necessary. Other information see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) The Steering Angle Sensor (SAS) is integrated in the Steering Wheel Module (SWM). When replacing the control module, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) .

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

The Steering Angle Sensor (SAS) has registered that information from the Central Electronic Module (CEM) about the car configuration is missing.

Finish the fault tracing and proceed with fault tracing on the Central Electronic Module (CEM).

FAULT TRACING SAS-C009687

see FAULT TRACING SAS-C009687

see FAULT TRACING SAS-C009687

The Steering Angle Sensor (SAS) has registered that information from the Central Electronic Module (CEM) about the car configuration is missing or is faulty.

Finish the fault tracing and proceed with fault tracing on the Central Electronic Module (CEM).

FAULT TRACING SAS-C009781

see FAULT TRACING SAS-C009781

see FAULT TRACING SAS-C009781

The Steering Angle Sensor (SAS) has registered that information from the Central Electronic Module (CEM) about the ignition key position is missing or is faulty.

Finish the fault tracing and proceed with fault tracing on the Central Electronic Module (CEM).

FAULT TRACING SAS-C009887

see FAULT TRACING SAS-C009887

see FAULT TRACING SAS-C009887

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

FAULT TRACING SAS-C009D01

see FAULT TRACING SAS-C009D01

see FAULT TRACING SAS-C009D01

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

see FAULT TRACING

FAULTY COMMUNICATION

see FAULTY COMMUNICATION

FAULTY CONFIGURATION (2003)

see FAULTY CONFIGURATION (2003)

FAULTY CONFIGURATION (2004)

see FAULTY CONFIGURATION (2004)

CHECKING THE POWER SUPPLY

Note. Steering wheel angle sensor module (SAS) is located inside, and is supplied with power by, the steering wheel module (SWM).

  1. Ignition on
  2. Read off the power supply for the steering wheel angle sensor module (SAS) and the central electronic module (CEM). The voltage for the steering wheel angle sensor module (SAS) and the central electronic module (CEM) must be approximately the same. The fault is permanent if the voltage for the steering wheel angle sensor module (SAS) deviates by more than 2.0 V from the central electronic module (CEM). If the voltage is approximately the same, this indicates an intermittent fault, i. e. the fault was present previously but is not active at the moment.
  1. Continue Refer to «CHECKING WIRING AND TERMINALS»(ref-476858-S19501819382012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reconnect the connectors, reinstall components etc.
  3. Ignition on
  4. Read off the power supply for the steering wheel angle sensor module (SAS) and the central electronic module (CEM). Check that the voltage is approximately battery voltage.

Is the voltage OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S35760562252012060500000)

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.

VOLTAGE TOO LOW

see VOLTAGE TOO LOW

Note. This trouble code is only relevant for troubleshooting and action in the following cases

  1. The trouble code is active in the present driving cycle and has been active for a longer period of time.
  2. The customer experiences malfunction that can be attributed to the trouble code.

In other cases, the DTC does not indicate a fault and must therefore be ignored and only erased.

Do you want to continue fault-tracing?

  1. YES Refer to «CHECKING THE POWER SUPPLY»(ref-476858-S20344123582012060500000)
  2. NO OKAY: Troubleshooting has been completed.

Note. The Steering Angle Sensor (SAS) is located in the Steering Wheel Module (SWM) from which it is supplied with power.

  1. Ignition on
  2. Read the supply voltage values for the Steering Angle Sensor (SAS) and the Central Electronic Module (CEM). The supply voltage values for the Steering Angle Sensor (SAS) and the Central Electronic Module should be approximately the same. If the two voltages differ by more than 2.0 V then this would suggest that the fault is permanent. If the voltages are approximately the same then this would suggest that the fault is intermittent, i. e. that the fault has previously been present but is no longer active.
  1. Continue Refer to «CHECKING LEADS AND CONNECTORS»(ref-476858-S39082165512012060500000)

CHECKING LEADS AND CONNECTORS

Check the connector to the Steering Wheel Module (SWM) for connector resistance and oxidation.

Check the power supply lead (15i supply) between the Steering Wheel Module (SWM) #A8 (#8) and the fuse in the luggage compartment relay/fuse centre with respect to contact resistance and oxidation. For information on the cable routing, see the applicable circuit diagram.

HINT: With ignition the voltmeter should display the battery voltage.

Check the ground lead between the ground terminal and the Steering Wheel Module (SWM) #A2 (#2) with respect to resistance and oxidation. For information on the cable routing, see the applicable circuit diagram.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-476731-S18470901272012060500000)
  2. see «CONTENTS»(ref-476689-S17283010372012060500000)
  3. The Steering Angle Sensor (SAS) is integrated in the Steering Wheel Module (SWM). When replacing the control module, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) .
  1. Continue Refer to «VERIFICATION»(ref-476858-S11544616762012060500000)

HINT: After carrying out the repair, check that the fault has been remedied.

  1. Ignition off
  2. Reconnect the connectors, components, etc.
  3. Ignition on
  4. Read the supply voltage values for the Steering Angle Sensor (SAS) and the Central Electronic Module (CEM). Check that the voltage is approximately the same as the battery voltage.

Is the voltage OK?

  1. YES VERIFIED: Troubleshooting has been completed.
  2. NO Refer to «INFORMATION»(ref-476858-S26828172962012060500000)

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.

see FAULT TRACING

see FAULT TRACING

More articles — Steering Angle Sensor (Sas) Diagnostic Trouble Codes