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

Electronic Steering 3 illustrations ~4472 words

CHECKING THE WIRING AND CONNECTIONS

Check the wires between steering wheel angle sensor (SAS) control unit #13 (#A37) and steering wheel control unit (SWM) #11 (#A11) for an open circuit as described in, see OPEN-CIRCUIT, INTERMITTENT FAULTS , and for an intermittent short circuit to ground as described in SHORT-CIRCUIT TO GROUND, INTERMITTENT FAULTS .

Additional information

  1. To connect the test box to the steering wheel angle sensor control unit, see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000) .
  2. To connect the test box to the steering wheel control unit, see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000) .
  3. For information on signals to the steering wheel angle sensor control unit, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) and «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .

Scheme 210

Scheme 210
Scheme 210

Scheme 211

Scheme 211
Scheme 211
  1. Continue Refer to «INFORMATION»(ref-476858-S08294873972012060500000)

Check the wires between steering wheel angle sensor (SAS) control unit #14 (#A38) and steering wheel control unit (SWM) #18 (#A18) for a short circuit to voltage supply, as described in, see SHORT-CIRCUIT TO SUPPLY VOLTAGE, INTERMITTENT FAULTS .

Additional information

  1. To connect the test box to the steering wheel angle sensor control unit, see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000) .
  2. To connect the test box to the steering wheel control unit, see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000) .
  3. For information on signals, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) and «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «INFORMATION»(ref-476858-S08898656892012060500000)

CHECKING WIRING AND SENSORS

  1. Disconnect the cable harness between the steering wheel angle sensor module (SAS) and the steering wheel module (SWM)
  2. Connect the breakout box. Check the wiring between the steering wheel angle sensor module (SAS) terminal #14 (#A38) and steering wheel module (SWM) terminal #18 (#A18). Check for an open-circuit. See «OPEN-CIRCUIT, PERMANENT FAULTS»(ref-494744-S18857066992012081600000) . Check for a short-circuit to supply voltage. See «SHORT-CIRCUIT TO SUPPLY VOLTAGE. PERMANENT FAULTS»(ref-494744-S38605125602012081600000) . HINT: With the ignition on and the breakout box connected to the steering wheel module (SWM), check the supply voltage to the steering wheel angle sensor control module: The voltage should be 12 V. 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 angle sensor. Other information: To connect the breakout box, 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) .

Was a fault found in the wiring?

  1. YES Refer to «VERIFICATION»(ref-476858-S19997440682012060500000)
  2. NO FAULT NOT FOUND: Troubleshooting has been completed.

Check the wires between steering wheel angle sensor (SAS) control unit #14 (#A38) and steering wheel control unit (SWM) #18 (#A18) for an open circuit as described in, see OPEN-CIRCUIT, INTERMITTENT FAULTS , and for an intermittent short circuit to ground as described in SHORT-CIRCUIT TO GROUND, INTERMITTENT FAULTS .

Additional information

  1. To connect the test box to the steering wheel angle sensor control unit, see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000) .
  2. To connect the test box to the steering wheel control unit, see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000) .
  3. For information on signals to the steering wheel angle sensor control unit, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) .
  4. For information on signals to the steering wheel control unit, see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «INFORMATION»(ref-476858-S30813074392012060500000)
  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 #14 (#A38) and steering wheel module (SWM) terminal #18 (#A18). Check for a short-circuit to ground according to «SHORT-CIRCUIT TO GROUND, PERMANENT FAULTS»(ref-494744-S31828114692012081600000) . Check for an open-circuit according to «OPEN-CIRCUIT, PERMANENT FAULTS»(ref-494744-S18857066992012081600000) . 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, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) and «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «VERIFICATION»(ref-476858-S15062348922012060500000)

CHECKING WIRING AND TERMINALS

Check the wiring between the control module for the steering wheel angle sensor

terminal #5 (terminal (#A29) and steering wheel module (SWM) terminal #4 (terminal #A4)

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 contact resistance and oxidation according to CONTACT RESISTANCE AND OXIDATION . Check for an intermittent open-circuit according to OPEN-CIRCUIT, INTERMITTENT FAULTS . Check for an intermittent short-circuit to ground according to SHORT-CIRCUIT TO GROUND, INTERMITTENT FAULTS . Check 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 to the control module for the steering wheel angle sensor, see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000)
  2. To connect the breakout box to the steering wheel module (SWM), see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000)
  3. To replace the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000)
  4. 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)
  5. For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «INFORMATION»(ref-476858-S03312065502012060500000)
  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. Check for open-circuits according to «OPEN-CIRCUIT, PERMANENT FAULTS»(ref-494744-S18857066992012081600000) . Check for a short-circuit to ground according to «SHORT-CIRCUIT TO GROUND, PERMANENT FAULTS»(ref-494744-S31828114692012081600000) . 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 connect the breakout box to the control module for the steering wheel angle sensor, see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000) 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-S29445792562012060500000)
  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 #5 (terminal (#A29) and steering wheel module (SWM) terminal #4 (terminal #A4) terminal #12 (terminal (#A36) and steering wheel module (SWM) terminal #13 (terminal #A3) terminal #13 (terminal (#A37) and steering wheel module (SWM) terminal #11 (terminal #A11) terminal #14 (terminal (#A38) and steering wheel module (SWM) terminal #18 (terminal #A18) check for a short-circuit to each other or an open-circuit according to «OPEN-CIRCUIT, PERMANENT FAULTS»(ref-494744-S18857066992012081600000) . Check for a short-circuit to ground according to «SHORT-CIRCUIT TO GROUND, PERMANENT FAULTS»(ref-494744-S31828114692012081600000) . 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 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-S05360744262012060500000)

Check the wiring between the control module for the steering wheel angle sensor

terminal #5 (terminal (#A29) and steering wheel module (SWM) terminal #4 (terminal #A4)

terminal #12 (terminal (#A36) and steering wheel module (SWM) terminal #13 (terminal #A3)

terminal #13 (terminal (#A37) and steering wheel module (SWM) (terminal #A11)

terminal #14 (terminal (#A38) and steering wheel module (SWM) terminal #18 (terminal #A18)

check for an intermittent short-circuit to each other.

Other information

  1. 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)
  2. To connect the breakout box to the steering wheel module (SWM), see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000)
  3. To replace the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000)
  4. 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)
  5. For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «INFORMATION»(ref-476858-S19819819272012060500000)

Check the wiring between the control module for the steering wheel angle sensor

terminal #5 (terminal (#A29) and steering wheel module (SWM) terminal #4 (terminal #A4)

terminal #12 (terminal (#A36) and steering wheel module (SWM) terminal #13 (terminal #A3)

terminal #13 (terminal (#A37) and steering wheel module (SWM) terminal #11 (terminal #A11)

terminal #14 (terminal (#A38) and steering wheel module (SWM) terminal #18 (terminal #A18)

check for an intermittent short-circuit to each other.

Remedy as necessary.

Other information

  1. 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)
  2. To connect the breakout box to the steering wheel module (SWM), see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000)
  3. To replace the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000)
  4. 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)
  5. For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «INFORMATION»(ref-476858-S16436061262012060500000)
  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 #5 (terminal (#A29) and steering wheel module (SWM) terminal #4 (terminal #A4) terminal #12 (terminal (#A36) and steering wheel module (SWM) terminal #13 (terminal #A13) terminal #13 (terminal (#A37) and steering wheel module (SWM) terminal #11 (terminal #A11) terminal #14 (terminal (#A38) and steering wheel module (SWM) terminal #18 (terminal #A18) 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 disconnect the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) 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 to 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-S07744927302012060500000)

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 an intermittent short-circuit to each other.

Remedy as necessary.

Other information

  1. To connect the breakout box to the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000)
  2. To connect the breakout box to the steering wheel module (SWM), see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000)
  3. To replace the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000)
  4. 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)
  5. For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «INFORMATION»(ref-476858-S41480214072012060500000)

Check the wiring between the control module for the steering wheel angle sensor

terminal #1 (terminal (#A25) and steering wheel module (SWM) terminal #6 (terminal #A6)

terminal #8 (terminal (#A32) and steering wheel module (SWM) terminal #7 (terminal #A7)

terminal #9 (terminal (#A33) and steering wheel module (SWM) terminal #12 (terminal #A12)

check for contact resistance and oxidation. Check for an intermittent open-circuit.

Other information

  1. 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)
  2. To connect the breakout box to the steering wheel module (SWM), see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000)
  3. To replace the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000)
  4. For information about signals to the control module for the steering wheel angle sensor, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000)
  5. For information about signals to the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000)
  6. see «CHECKING WIRING AND TERMINALS»(ref-476689-S17655503092012060500000)
  1. Continue Refer to «INFORMATION»(ref-476858-S06660448092012060500000)
  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 #1 (terminal (#A25) and steering wheel module (SWM) terminal #6 (terminal #A6) terminal #8 (terminal (#A32) and steering wheel module (SWM) terminal #7 (terminal #A7) terminal #9 (terminal (#A33) and steering wheel module (SWM) terminal #12 (terminal #A12) for an open-circuit. See «OPEN-CIRCUIT, PERMANENT FAULTS»(ref-494744-S18857066992012081600000) . Try replacing the steering wheel angle sensor if no fault is found in the wiring. 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 «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) .
  1. Continue Refer to «VERIFICATION»(ref-476858-S09335105452012060500000)
  1. Ignition off
  2. 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 (#A32) and steering wheel module (SWM) terminal #7 (#A7). Check for an open-circuit. See «OPEN-CIRCUIT, PERMANENT FAULTS»(ref-494744-S18857066992012081600000) . Check for a short-circuit to ground. See «SHORT-CIRCUIT TO GROUND, PERMANENT FAULTS»(ref-494744-S31828114692012081600000) . Try replacing the steering wheel angle sensor if no faults are found in the wiring between the control module and the steering wheel angle sensor. 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-S04335270052012060500000)
  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) check for a short-circuit to ground according to «SHORT-CIRCUIT TO GROUND, PERMANENT FAULTS»(ref-494744-S31828114692012081600000) 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 fault is found in the wiring. 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 «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To replace the steering wheel angle sensor, 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) .
  1. Continue Refer to «VERIFICATION»(ref-476858-S39939616522012060500000)

Check the wires between steering wheel angle sensor (SAS) control unit #3 (#A27) and steering wheel control unit (SWM) #5 (#A5) for an open circuit, as described in, see OPEN-CIRCUIT, INTERMITTENT FAULTS .

Additional information

  1. To connect the test box to the steering wheel angle sensor (SAS), see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000) .
  2. To connect the test box to the steering wheel control unit (SWM), see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000) .
  3. For information on signals, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) and «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «INFORMATION»(ref-476858-S09849822062012060500000)
  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 (#A27) and steering wheel module (SWM) terminal #5 (#A5). Check for an open-circuit according to «OPEN-CIRCUIT, PERMANENT FAULTS»(ref-494744-S18857066992012081600000) . 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 to 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-S15870341822012060500000)

Check the wires between steering wheel angle sensor (SAS) control unit #4 (#A28) and steering wheel control unit (SWM) #3 (#A3) for an open circuit, as described in, see OPEN-CIRCUIT, INTERMITTENT FAULTS .

Additional information

  1. To connect the test box to the steering wheel angle sensor (SAS), see «CONNECTING THE BREAKOUT BOX TO THE STEERING ANGLE SENSOR»(ref-476731-S14835773322012060500000) .
  2. To connect the test box to the steering wheel control unit (SWM), see «CONNECTING THE BREAKOUT BOX»(ref-476731-S03025038282012060500000) .
  3. For information on signals, see «SIGNAL DESCRIPTION, CONTROL UNIT FOR THE STEERING WHEEL ANGLE SENSOR (SAS)»(ref-476858-S26963502192012071100000) and «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «INFORMATION»(ref-476858-S20833465992012060500000)
  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 #4 (#A28) and steering wheel module (SWM) terminal #3 (#A3). Check for an open-circuit according to «OPEN-CIRCUIT, PERMANENT FAULTS»(ref-494744-S18857066992012081600000) . 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-S17812958972012060500000)
  1. Disconnect the connectors for the control module for the steering wheel angle sensor and the steering wheel module (SWM)
  2. Connect the breakout box. Check the cable between the control module for the steering wheel angle sensor terminal #7 (#A31) and steering wheel module (SWM) terminal #14 (#A14). Check for an intermittent open-circuit according to «OPEN-CIRCUIT, INTERMITTENT FAULTS»(ref-494744-S28925640132012081600000) . Check the wiring between the control module for the steering wheel angle sensor: terminal #9 (terminal (#A33) and steering wheel module (SWM) terminal #12 (terminal #A12) terminal #8 (terminal (#A32) and steering wheel module (SWM) terminal #7 (terminal #A7) check for an intermittent short-circuit to supply voltage according to «SHORT-CIRCUIT TO SUPPLY VOLTAGE, INTERMITTENT FAULTS»(ref-494744-S21907642182012081600000) . 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 for the steering wheel module (SWM), see «SIGNAL SPECIFICATION»(ref-476735-S34275963732012060500000) .
  1. Continue Refer to «INFORMATION»(ref-476858-S37764257372012060500000)
  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 #7 (#A31) and steering wheel module (SWM) terminal #14 (#A14). Check for an open-circuit according to «OPEN-CIRCUIT, PERMANENT FAULTS»(ref-494744-S18857066992012081600000) . Check the wiring between the control module for the steering wheel angle sensor terminal #9 (terminal (#A33) and steering wheel module (SWM) terminal #12 (terminal #A12) terminal #8 (terminal (#A32) and steering wheel module (SWM) terminal #7 (terminal #A7) check for a short-circuit to ground according to «SHORT-CIRCUIT TO GROUND, PERMANENT FAULTS»(ref-494744-S31828114692012081600000) . 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 fault is found in the wiring. 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-S31441826372012060500000)

CHECKING THE WIRING

  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 #2 (#A26) and steering wheel module (SWM) terminal #6 (#A6). 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 fault is found in the wiring. Other information: To disconnect the control module for the steering wheel angle sensor, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) To connect the breakout box to 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 disconnect and replace the steering wheel angle sensor, see «CONTACT REEL, REPLACEMENT»(ref-476866-S26931636732012060500000) .
  1. Continue Refer to «VERIFICATION»(ref-476858-S27591754262012060500000)

Check the connector for the steering wheel module (SWM). Check for contact resistance and oxidation.

Check the power supply cable (15i-supply) between the fuse in the integrated relay/fusebox in the cargo compartment and steering wheel module (SWM) terminal #A8 (#8). Check for contact resistance. Check for oxidation. For information about the circuit, see the relevant appropriate service information.

HINT: With the ignition on the voltmeter should indicate battery voltage.

Check the ground lead between steering wheel module (SWM) terminal #A2 (#2) and the ground terminal. Check for contact resistance. Check for oxidation. For information about the circuit, see the relevant appropriate service information.

Remedy as necessary.

Other information

  1. see «CONNECTING THE BREAKOUT BOX»(ref-476731-S18470901272012060500000)
  2. see «CONTENTS»(ref-476689-S17283010372012060500000)
  3. Steering wheel angle sensor module (SAS) is integrated in the steering wheel module (SWM). To replace the control module, see «STEERING WHEEL MODULE (SWM), REPLACING»(ref-476734-S18250606882012060500000) .

Scheme 212

Scheme 212
Scheme 212
  1. Continue Refer to «VERIFICATION»(ref-476858-S29683428222012060500000)

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