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Accessory Power Socket Cadillac Escalade GMT900

Body Electrical 4 illustrations ~2055 words

Scheme 40

Scheme 40: Cigar Lighter/Power Outlet Schematics
Scheme 40: Cigar Lighter/Power Outlet Schematics

Scheme 41

Scheme 41
Scheme 41

Visual/Physical Inspection

  1. Inspect for aftermarket devices which can affect the operation of the power outlets. Refer to «Checking Aftermarket Accessories»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__checking-aftermarket-accessories)
  2. Inspect the accessible system components or the visible system components for obvious damage or for obvious conditions which can cause the symptom.

Intermittent

Electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections

Symptom List

Diagnostic Instructions

  1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) 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 Description

The accessory power receptacles are supplied B+ all the time.

Reference Information

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

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.

Repair Procedures

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. Perform the «Diagnostic System Check - Vehicle»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures) prior to using this diagnostic procedure.
  2. Review «Strategy Based Diagnosis»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__strategy-based-diagnosis) for an overview of the diagnostic approach.
  3. «Diagnostic Procedure Instructions»(/cadillac/escalade/gmt900-2006-2014/remont/oem-general-information/#vehicle-diagnostic-information-diagnostic-information-and-procedures__diagnostic-procedure-instructions) provides an overview of each diagnostic category.
CircuitShort to GroundOpen/High ResistanceShort to VoltageSignal Performance
AC Terminal 4111
AC Terminal 6111
B+11
Ignition11
Signal112
Ground1
1. Accessory DC/AC Power Inverter Module Always OFF 2. Accessory DC/AC Power Inverter Module Always ON

The accessory DC/AC power inverter module converts 12 V direct current (DC) battery voltage to 110 V at 60 Hertz (Hz) alternating current (AC) in order to operate AC powered devices. The accessory DC/AC power inverter module provides up to 150 watts of power. The accessory DC/AC power inverter module is connected to a chassis ground circuit and receives fuse protected battery voltage.

The accessory power receptacle - 110 V AC has an internal switch, that detects when an AC powered device is plugged into the receptacle. When the ignition is ON and an AC powered device is plugged into the accessory power receptacle - 110 V AC, the normally open switch in the accessory power receptacle - 110 V AC, closes. When the accessory DC/AC power inverter module detects the voltage from the accessory power receptacle - 110 V AC switch, the inverter module begins to supply 110 V AC to the accessory power receptacle - 110 V AC after a 1.5 second delay.

Schematic Reference

Connector End View Reference

Description and Operation

Electrical Information Reference

  1. «Circuit Testing»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__circuit-testing)
  2. «Connector Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__connector-repairs)
  3. «Testing for Intermittent Conditions and Poor Connections»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__testing-for-intermittent-conditions-and-poor)
  4. «Wiring Repairs»(/cadillac/escalade/gmt900-2006-2014/remont/ignition-switchsteering-lock/#wiring-systems-and-power-management-diagnostic-information-and-procedures__wiring-repairs)

Circuit/System Verification

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, test for 12.0-15.0 V across the battery terminals. If not within the specified range, refer to «Battery Inspection/Test»(/cadillac/escalade/gmt900-2006-2014/remont/charging-system/#battery-charging-system-and-starting-system) .
  2. Ignition ON, connect an AC power extension cord to the X81 accessory power receptacle - 110 V AC. Inserting the extension cord plug into the X81 accessory power receptacle - 110 V AC turns the T1 accessory DC/AC power inverter module ON.
  3. Verify the receptacle indicator light comes ON.
  4. Test for 110-120 V between the terminals of the extension cord.
  5. Test for 59-61 Hz AC between the terminals of the extension cord.
  1. Ignition OFF, disconnect the harness connectors at the T1 Accessory DC/AC power inverter module.
  2. Test for less than 10 ohms between the ground circuit terminal 1 X2 and ground. If greater than the specified range, test the ground circuit for an open/high resistance.
  3. Verify that a test lamp illuminates between the B+ circuit terminal 2 X2 and ground. If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
  4. Ignition ON, test for less than 1.0 V between the AC circuit terminals listed below and ground: Terminal 4 X1 Terminal 6 X1 If greater than the specified range, test the AC circuit for a short to voltage.
  5. Ignition OFF, test for infinite resistance between the AC circuit terminals listed below and ground: Terminal 4 X1 Terminal 6 X1 If less than the specified value, test the AC circuit for a short to ground.
  6. Disconnect the harness connector at the X81 accessory power receptacle - 110 V AC.
  7. Ignition ON, verify a test lamp illuminates between the control circuit terminal 4 and ground. If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K9 BCM.
  8. Verify a test lamp does not illuminate between the signal terminal 1 and ground. If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the T1 Accessory DC/AC power inverter module.
  9. Connect a 3 A fused jumper between the control terminal 4 and the signal terminal 1.
  10. Ignition ON, verify that a test lamp illuminates between the T1 Accessory DC/AC power inverter module signal circuit terminal 2 X1 and ground. If the test lamp does not illuminate, test the signal circuit for a short to ground or an open/high resistance.
  11. Ignition OFF, connect the harness connectors at the T1 Accessory DC/AC power inverter module. Ignition ON, test for 110-120 V AC between the X81 accessory power receptacle - 110 V AC terminal 3 and 6. If not within the specified range, check both AC circuits for an open/high resistance. If all circuits test normal, replace the T1 Accessory DC/AC power inverter module.
  12. If all circuits test normal, replace the X81 accessory power receptacle - 110 V AC.

Component Testing

Accessory Power Outlet

  1. Ignition OFF, remove the X80 accessory power receptacle - 110 V AC.
  2. Test for greater than 1 M ohms between terminal 3 and terminal 6. If less than the specified range, replace the X80 accessory power receptacle - 110 V AC.
  3. Test for less than 3 ohms between the following terminals: The terminal 3 and the applicable receptacle terminal The terminal 6 and the applicable receptacle terminal If greater than the specified range, replace the X80 accessory power receptacle - 110 V AC.
  4. Test for infinite resistance between terminal 4 and terminal 1. If not the specified value, replace the X80 accessory power receptacle - 110 V AC.
  5. Connect an AC powered device to the X80 accessory power receptacle - 110 V AC.
  6. Test for less than 3 ohms between terminal 4 and terminal 1. If greater than the specified range, replace the X80 accessory power receptacle - 110 V AC.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

  1. «Accessory Power Receptacle Replacement (HP2)»(/cadillac/escalade/gmt900-2006-2014/remont/body-electrical/#accessory-power-socket)
  2. «Control Module References»(/cadillac/escalade/gmt900-2006-2014/remont/communication-devices/#programming-and-setup-all-systems__control-module-references) for control module replacement, setup, and programming

Tools Required

J 42059 Cigar Lighter Socket Remover. See Special Tools .

Removal Procedure

  1. Remove the auxiliary power outlet fuse from the fuse block.
  2. Remove the receptacle: Look into the receptacle. There are two 3 mm (0.11 in) tab windows 12 mm (0.47 in) from the front of the receptacle. The J 42059 pushes the plastic latches from these tab windows and the receptacle can be pulled straight out. See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/body-electrical/#accessory-power-socket__special-tools) . Place one side of the "T" portion of the J 42059 into the tab window. See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/body-electrical/#accessory-power-socket__special-tools) . The J 42059 will not fit straight into the receptacle. See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/body-electrical/#accessory-power-socket__special-tools) . Angle the J 42059 slightly for insertion into the receptacle. See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/body-electrical/#accessory-power-socket__special-tools) . Insert the other side of the "T" into the opposite tab window. You must move the J 42059 handle toward horizontal to engage the other tab window. See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/body-electrical/#accessory-power-socket__special-tools) . Use the J 42059 to pull the receptacle straight out. See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/body-electrical/#accessory-power-socket__special-tools) .
  3. If J 42059 tool fails to release the lighter socket from the retainer, perform the following alternate method: See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/body-electrical/#accessory-power-socket__special-tools) . Insert a small grinding tool with a cutoff wheel into the socket. Remove the plastic latches in the 3 mm (0.11 in) square windows. Use the J 42059 as directed above to remove the socket. See «Special Tools»(/cadillac/escalade/gmt900-2006-2014/remont/body-electrical/#accessory-power-socket__special-tools) .

Installation Procedure

  1. Route the connector through the retainer. Align the accessory power receptacle retainer to the slot in the opening.
  2. Install the retainer by pressing into place fully seated.
  3. Connect the electrical connector to the receptacle.
  4. Align the tabs on the receptacle to the slots in the retainer. Install the accessory power receptacle by pressing into place until fully seated.
  5. Install the accessory power receptacle fuse.

Scheme 42

Scheme 42: Accessory AC and DC Power Control Module Replacement
Scheme 42: Accessory AC and DC Power Control Module Replacement
CalloutComponent Name
Preliminary Procedure: Remove the left side rear quarter trim panel. Refer to Rear Quarter Trim Panel Replacement - Left Side (Extended Wheelbase w/o E61) or Rear Quarter Trim Panel Replacement - Left Side (Extended Wheelbase w/E61) or Rear Quarter Trim Panel Replacement - Left Side (Standard Wheelbase w/o E61) or Rear Quarter Trim Panel Replacement - Left Side (Standard Wheelbase w/E61) .
1Tire Inflator Bracket Nut (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten: 9 N.m (80 lb in)
2Tire Inflator Bracket
3Accessory AC and DC Power Control Module Nut Tighten: 9 N.m (80 lb in)
4Accessory AC and DC Power Control Module Procedure Disconnect the electrical connectors. For programming and setup procedures, refer to Control Module References .
CAUTION
Refer to Fastener Caution .

Scheme 43

Scheme 43: Accessory Power Receptacle Replacement (HP2)
Scheme 43: Accessory Power Receptacle Replacement (HP2)
CalloutComponent Name
1Rear Seat Cup Holder Procedure: Remove cup holder to access receptacle.
2Accessory Power Receptacle Procedure Squeeze tabs to unsnap the receptacle from the left side rear quarter trim panel. Disconnect the electrical connector.

12 Volt Power Outlet Receptacle Description and Operation

The 12 V accessory power receptacles are supplied B+ all the time.

110 Volt Power Outlet Receptacle System Description

The alternating current (AC) accessory power outlet system consists of the accessory DC/AC power inverter module and the accessory power receptacle - 110 V AC. The accessory DC/AC power inverter module converts 12 V direct current (DC) battery power to 110 V at 60 Hertz (Hz) AC power to operate AC powered devices. The accessory DC/AC power inverter module provides up to 150 watts of power. The accessory power receptacle - 110 V AC provides the usual connection for AC powered devices.

110 Volt Power Outlet Receptacle System Operation

The accessory DC/AC power inverter module receives fuse protected battery voltage and is connected to the 12 V electrical system ground. The accessory power receptacle - 110 V AC has an internal switch, that detects when an AC powered device is plugged into the outlet. When the ignition is ON, and an AC powered device is plugged into the accessory power receptacle - 110 V AC, the normally open switch in the accessory power receptacle - 110 V AC, closes. When the accessory DC/AC power inverter module detects the voltage from the accessory power receptacle - 110 V AC switch, the inverter module begins to supply 110 V AC to the accessory power receptacle - 110 V AC after a 1.5 second delay. The accessory AC power system is protected against circuit overload and circuit shorts to ground.

110 Volt Power Outlet Receptacle Isolation Fault Protection

The accessory DC/AC power inverter module contains a ground fault circuit interrupter (GFCI). GFCI monitors the 110 V circuit for a short to vehicle chassis ground. If a 110 V AC short to ground is detected, the accessory DC/AC power inverter module will turn OFF. The module remains OFF, until the AC powered device is unplugged from the outlet, and then plugged into the outlet after a 3 second delay.

110 Volt Power Outlet Receptacle Overload Shutdown

The accessory DC/AC power inverter module will turn OFF if the current in the 110 V circuit is greater than 3.8 A for 1 second, or 2.5 A for 10 seconds. The module will turn ON again, when the AC powered device is unplugged from the outlet, and then plugged into the outlet after a 3 second delay.

110 Volt Power Outlet Receptacle Internal Shutdown

The accessory DC/AC power inverter module will turn OFF if the B+ supply voltage is greater than 16.5 V or less than 11 V. The module will also turn OFF if the device temperature is greater than 85°C (185°F). The module will turn ON again, after the shutdown condition is corrected, and the AC powered device is unplugged from the outlet, and then plugged into the outlet.

Special Tools

Illustration Tool Number/ Description J 42059 Cigar Lighter Socket Remover

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