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Power Outlets: Diagnosis GMC Acadia I рестайлинг

Body Electrical ~1073 words

Visual/Physical Inspection

  1. Inspect for aftermarket devices which can affect the operation of the power outlets. Refer to «Checking Aftermarket Accessories»(ref-610066-S23886117082014042100000)
  2. Inspect the accessible system components or the visible system components for obvious damage or for obvious conditions which can cause the symptom.

Symptom List

Refer to Power Outlet Receptacle Malfunction (12V DC) and Power Outlet Receptacle Malfunction (110V AC) in order to diagnose the system.

Diagnostic Instructions

  1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.

Diagnostic Fault Information

CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
B+11
Ground1
1. Accessory Power Receptacle Malfunction

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the appropriate X80 accessory power receptacle.
  2. Test for less than 5 ohms between the ground circuit terminal C and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Ignition ON, verify that a test lamp illuminate between the B+ circuit terminal A and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. If all circuits test normal, test or replace the X80 accessory power receptacle.
  1. Perform the «Diagnostic System Check - Vehicle»(ref-610038-S36414632882014042100000) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(ref-610038-S01145188892014042100000) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(ref-610038-S00675927362014042100000) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
B+11
Ignition11
AC Terminal 2111
AC Terminal 7111
Signal112
Ground1
1. Accessory DC/AC Power Control Module Always OFF 2. Accessory DC/AC Power Control Module Always ON
WARNINGTo help avoid personal injury, always treat the accessory power receptacle, accessory DC/AC power inverter module, AC circuit wires and connectors as if AC high-voltage is present.
  1. Ignition OFF, scan tool disconnected, ignition key removed. Wait for 2 min. Nothing plugged into the Accessory Power Receptacle - 110V AC, disconnect the harness connector at the Accessory DC/AC Power Control Module.
  2. Test for less than 10 ohms between the ground circuit terminal 11 and ground. If greater than 10 ohms Ignition OFF. Test for less than 2 ohms in the ground circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, repair the open/high resistance in the ground connection. If less than 10 ohms
  3. Verify that a test lamp illuminates between the B+ circuit terminal 6 and ground. If the test lamp does not illuminate and the circuit fuse is good Ignition OFF. Test for less than 2 ohms in the B+ circuit end to end. If greater than 2 ohms, repair the open/high resistance in the circuit. If less than 2 ohms, verify the fuse is not open and there is voltage at the fuse. If the test lamp does not illuminate and the circuit fuse is open Ignition OFF. Test for infinite resistance between the B+ circuit terminal 6 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance, replace the Accessory DC/AC Power Control Module. If the test lamp illuminates
  4. Test for less than 1 V between the signal circuit terminal 12 and ground. If greater than 1 V Repair the short to voltage in the signal circuit. If less than 1 V
  5. Test for infinite resistance between the signal circuit terminal 12 and ground. If less than infinite resistance Repair the short to ground in the signal circuit. If infinite resistance
  6. Test for less than 1 V between the AC circuit terminals listed below and ground. AC Terminal 2 AC Terminal 7 If greater than 1 V Repair the short to voltage in the AC circuit. If less than 1 V
  7. Test for infinite resistance between the AC circuit terminals listed below and ground: AC Terminal 2 AC Terminal 7 If less than infinite resistance Repair the short to ground in the AC circuit. If infinite resistance
  8. Disconnect X1 and X2 harness connectors at the Accessory Power Receptacle - 110V.
  9. Test for less than 2 ohms between the AC circuit terminals listed below: Accessory Power Receptacle - 110V AC terminal 3 X1 and the Accessory DC/AC Power Control Module terminal 2. Accessory Power Receptacle - 110V AC terminal 3 X2 and the Accessory DC/AC Power Control Module terminal 7. If greater than 2 ohms Repair the open/high resistance in the AC circuit. If less than 2 ohms
  10. Ignition ON.
  11. Verify that a test lamp illuminates between the ignition voltage circuit terminal 1 X1 and ground. If the test lamp does not illuminate Ignition OFF, disconnect the X7 harness connector at the K9 Body Control Module. Test for infinite resistance between the control circuit terminal 2 X7 and ground. If less than infinite resistance, repair the short to ground on the circuit. If infinite resistance Test for less than 2 ohms in the control circuit end to end. If 2 ohms or greater, repair the open/high resistance in the circuit. If less than 2 ohms, replace the K9 Body Control Module. If the test lamp illuminates
  12. Ignition OFF, connect all harness connectors at the Accessory Power Receptacle - 110V AC. Connect a 110 V extension cord without a connected device to the Accessory Power Receptacle - 110V AC, ignition ON.
  13. Verify that a test lamp illuminates between the Accessory DC/AC Power Control Module signal circuit terminal 12 and ground. If the test lamp does not illuminate Ignition OFF. Test for less than 2 ohms in the signal circuit end to end. If greater than 2 ohms, repair the open/high resistance in the circuit. If less than 2 ohms, replace the Accessory Power Receptacle - 110V AC. If the test lamp illuminates
  14. Test or replace the Accessory DC/AC Power Control Module.

Component Testing

Accessory Power Outlet 110V AC

  1. Ignition OFF, disconnect the harness connectors at the Accessory Power Receptacle - 110V AC.
  2. Connect positive DMM lead to terminal 3 X2 and negative DMM lead to terminal 3 X1. Test for infinite resistance. If less than infinite resistance Replace Accessory Power Receptacle - 110V AC.
  3. Test for less than 2 ohms between the following terminals: The terminal 3 X2 and the applicable receptacle terminal The terminal 3 X1 and the applicable receptacle terminal If greater than the 2 ohms Replace the Accessory Power Receptacle - 110V AC.
  4. Test for infinite resistance between terminal 1 X1 and terminal 1 X2. If less than the specified range Replace Accessory Power Receptacle - 110V AC. If infinite resistance
  5. Connect a 110 V extension cord without a connected device to the Accessory Power Receptacle - 110V AC.
  6. Test for less than 5 ohms between terminal 1 X1 and terminal 1 X2. If greater than the 5 ohms Replace the Accessory Power Receptacle - 110V AC. If less than 5 ohms
  7. All OK

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