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Configurable Customer Control System: Diagnosis Pontiac Torrent I

Memory Modules ~1465 words

DIAGNOSTIC CODE INDEX

DTCDescription
DTC B1529 (Equinox)Device Voltage Reference Output Circuit Voltage Above/Below Threshold
DTC B1529 (Torrent)Device Voltage Reference Output Circuit Voltage Above/Below Threshold

DIAGNOSTIC CODE INDEX

Diagnostic Starting Point - Secondary and Configurable Customer Controls

Begin the system diagnosis with the Diagnostic System Check - Vehicle . The Diagnostic System Check - Vehicle will provide the following information

  1. The identification of the control modules which command the system
  2. The ability of the control modules to communicate through the serial data circuit
  3. The identification of any stored DTCs and their status

The use of the Diagnostic System Check - Vehicle will identify the correct procedure for diagnosing the system and where the procedure is located.

Scan Tool Data List

Scan Tool ParameterData ListUnits DisplayedTypical Data Value
Operating Conditions: Ignition ON
SWC Bank 1 StatusData DisplaySW1-SW7Pressed: SW1-SW7, Released: Idle

Scan Tool Data List

Diagnostic Instructions

  1. Perform the «Diagnostic System Check - Vehicle»(ref-275030-S04298853422007122600000) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(ref-275030-S29450998122007122600000) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(ref-275030-S26316756392007122600000) provides an overview of each diagnostic category.

Diagnostic Fault Information

CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Remote Radio Control Supply VoltageB1529 03B1529 03B1529 07
Remote Radio Control Signal111
1. Steering Wheel Controls Inoperative

DTC B1529 (Equinox)

Conditions for Running the DTC

The ignition is ON.

Scan Tool Reference

  1. «Scan Tool Data List»(ref-275039-S18329079432007122600000)
  2. «Scan Tool Data Definitions»(ref-275039-S18698898702007122600000)

Circuit/System Testing

IMPORTANTIt is recommended that component testing is performed before circuit testing when diagnosing steering wheel controls.
CAUTIONRefer to SIR CAUTION .
  1. Ignition OFF, disconnect the harness connector at the right steering wheel control switch.
  2. Ignition ON, test for ignition voltage between the ignition circuit terminal 3 and ground. If less than specified value, test the ignition circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
  3. Test for the 0 volts between the signal circuit terminal 4 and ground. If greater than specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  4. Test for ignition voltage between the ignition circuit terminal 3 and the signal circuit terminal 4. If less than specified value, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the BCM.
  5. Ignition OFF, disconnect the harness connector at the BCM.
  6. Test for infinite resistance between the signal circuit terminal and ground. If less than specified value, test the signal circuit for a short to ground.
  7. If all circuits test normal, test or replace switch.

Component Testing

CAUTIONRefer to SIR CAUTION .
  1. Ignition OFF, disconnect the harness connector at the suspect steering wheel control switch.
  2. Test for infinite resistance between the ignition terminal 3 and the signal terminal 4 with the switch in the open position. If less than specified value, replace the switch.
  3. Test for less than 5400 ohms of resistance between the signal terminal 4 and the ignition terminal 3 with the switch in the closed position. If greater than the specified value, replace the steering wheel control switch.
  1. Perform the «Diagnostic System Check - Vehicle»(ref-275030-S04298853422007122600000) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(ref-275030-S29450998122007122600000) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(ref-275030-S26316756392007122600000) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
Remote Radio Control Supply VoltageB1529 03B1529 03B1529 07
Remote Radio Control Signal111
1. Steering Wheel Controls Inoperative

DTC B1529 (Torrent)

The ignition is ON.

  1. «Scan Tool Data List»(ref-275039-S18329079432007122600000)
  2. «Scan Tool Data Definitions»(ref-275039-S18698898702007122600000)
IMPORTANTIt is recommended that component testing is performed before circuit testing when diagnosing steering wheel controls.
CAUTIONRefer to SIR CAUTION .
  1. Ignition OFF, disconnect the harness connector at the right steering wheel control switch.
  2. Ignition ON, test for ignition voltage between the ignition circuit terminal 2 and ground. If less than specified value, test the ignition circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
  3. Test for the 0 volts between the signal circuit terminal 4 and ground. If greater than specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  4. Test for ignition voltage between the ignition circuit terminal 2 and the signal circuit terminal 4. If less than specified value, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the BCM.
  5. Ignition OFF, disconnect the harness connector at the BCM.
  6. Test for infinite resistance between the signal circuit terminal and ground. If less than specified value, test the signal circuit for a short to ground.
  7. If all circuits test normal, test or replace switch.
CAUTIONRefer to SIR CAUTION .
  1. Ignition OFF, disconnect the harness connector at the suspect steering wheel control switch.
  2. Test for infinite resistance between the ignition terminal 2 and the signal terminal 4 with the switch in the open position. If less than specified value, replace the switch.
  3. Test for less than 3100 ohms of resistance between the signal terminal 4 and the ignition terminal 2 with the switch in the closed position. If greater than the specified value, replace the steering wheel control switch.

Visual/Physical Inspection

  1. Inspect for aftermarket devices which may affect the operation of the Steering Wheel Controls System. Refer to «Checking Aftermarket Accessories»(ref-275031-S32826276812007122600000) .
  2. Inspect for easily accessible or visible system components for obvious damage or conditions which may cause the symptom.

Symptom List

Refer to Steering Wheel Controls Inoperative (Equinox) or Steering Wheel Controls Inoperative (Torrent) in order to diagnose the symptom.

  1. Perform the «Diagnostic System Check - Vehicle»(ref-275030-S04298853422007122600000) prior to using this diagnostic procedure.
  2. Review «STRATEGY BASED DIAGNOSIS»(ref-275030-S29450998122007122600000) for an overview of the diagnostic approach.
  3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-275030-S26316756392007122600000) Diagnostic Procedure Instructions provide an overview of each diagnostic category.

Diagnostic Aids

  1. This diagnostic is for the audio steering wheel controls.
  2. Before diagnosis of the steering wheel controls, ensure the primary controls of the associated component are functioning properly.
  3. Review with the schematic when testing switch resistance values.
  4. If a single switch function is inoperative, test the suspect switch. Refer to «Component Testing»(ref-275039-S01801016282007122600000) .
  1. «Scan Tool Data List»(ref-275039-S18329079432007122600000)
  2. «Scan Tool Data Definitions»(ref-275039-S18698898702007122600000)
CAUTIONRefer to SIR Caution .
IMPORTANTIt is recommended that component testing is performed before circuit testing when diagnosing steering wheel controls.
  1. Ignition OFF, disconnect the harness connector at the right steering wheel control switch.
  2. Ignition ON, test for ignition voltage between the ignition circuit terminal 3 and ground. If less than specified value, test the ignition circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
  3. Test for the 0 volts between the signal circuit terminal 4 and ground. If greater than specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  4. Test for ignition voltage between the ignition circuit terminal 3 and the signal circuit terminal 4. If less than specified value, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the BCM.
  5. Ignition OFF, disconnect the C1 harness connector at the BCM.
  6. Test for infinite resistance between the signal circuit terminal 6 and ground. If not the specified value, test the signal circuit for a short to ground.
  7. If all circuits test normal, test or replace switch.
CAUTIONRefer to SIR Caution .
  1. Ignition OFF, disconnect the harness connector at the suspect steering wheel control switch.
  2. Test for infinite resistance between the ignition terminal 3 and the signal terminal 4 with the switch in the open position. If less than specified value, replace the switch.
  3. Test for less than 5400 ohms of resistance between the signal terminal 4 and the ignition terminal 3 with the switch in the closed position. If greater than the specified value, replace the steering wheel control switch.
  1. Perform the «Diagnostic System Check - Vehicle»(ref-275030-S04298853422007122600000) prior to using this diagnostic procedure.
  2. Review «STRATEGY BASED DIAGNOSIS»(ref-275030-S29450998122007122600000) for an overview of the diagnostic approach.
  3. «DIAGNOSTIC PROCEDURE INSTRUCTIONS»(ref-275030-S26316756392007122600000) Diagnostic Procedure Instructions provide an overview of each diagnostic category.

Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

  1. This diagnostic is for the audio steering wheel controls.
  2. Before diagnosis of the steering wheel controls, ensure the primary controls of the associated component are functioning properly.
  3. Review with the schematic when testing switch resistance values.
  1. «Scan Tool Data List»(ref-275039-S18329079432007122600000)
  2. «Scan Tool Data Definitions»(ref-275039-S18698898702007122600000)
CAUTIONRefer to SIR Caution .
IMPORTANTIt is recommended that component testing is performed before circuit testing when diagnosing steering wheel controls.
  1. Ignition OFF, disconnect the harness connector at the right steering wheel control switch.
  2. Ignition ON, test for ignition voltage between the ignition circuit terminal 2 and ground. If less than specified value, test the ignition circuit for a short to ground or open/high resistance. If the circuit tests normal, replace the BCM.
  3. Test for the 0 volts between the signal circuit terminal 2 and ground. If greater than specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM.
  4. Test for ignition voltage between the ignition circuit terminal 2 and the signal circuit terminal 4. If less than specified value, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the BCM.
  5. Ignition OFF, disconnect the C1 harness connector at the BCM.
  6. Test for infinite resistance between the signal circuit terminal 6 and ground. If not the specified value, test the signal circuit for a short to ground.
  7. If all circuits test normal, test or replace switch.
CAUTIONRefer to SIR Caution .
  1. Ignition OFF, disconnect the harness connector at the right steering wheel control switch.
  2. Test for infinite resistance between the ignition terminal 2 and the signal terminal 4 with the switch in the open position. If less than specified value, replace the switch.
  3. Test for less than 3100 ohms of resistance between the signal terminal 4 and the ignition terminal 3 with the switch in the closed position. If greater than the specified value, replace the steering wheel control switch.

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