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STEP
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INSPECTION
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ACTION
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1
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DTC INSPECTION
Is the DTC displayed?
• B2100 or B2104
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Yes
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No
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Go to the next step.
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2
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INSPECT DRIVER-SIDE DOOR KEY CYLINDER SWITCH CIRCUIT INPUT TO THE GEM
Disconnect the GEM connector.
Measure the resistance between GEM connector terminal 2L (harness-side) and ground while turning the driver-side door key cylinder switch to UNLOCK.
Measure the resistance between GEM connector terminal 2N (harness-side) and ground while turning the driver-side door lock switch to LOCK.
Is the resistance less than 5 ohms?
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Yes
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Go to Step 6.
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No
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Go to the next step.
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3
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INSPECT DRIVER-SIDE DOOR KEY CILINDER CIRCUIT FOR SHORT TO B+
Turn the ignition switch to the ON position.
Measure the voltage between GEM connector terminal 2L (harness-side) and ground, and GEM connector terminal 2N (harness-side) and ground.
Is voltage detected at both terminals?
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Yes
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Repair the circuit.
Inspect the system for normal operation.
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No
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Go to the next step.
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4
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INSPECT DRIVER-SIDE DOOR KEY CYLINDER CIRCUIT FOR OPEN CIRCUIT
Inspect the resistance between GEM connector terminal 2N (harness-side) and driver-side door latch and lock actuator connector terminal H (harness-side), and GEM connector terminal 2L (harness-side) and driver-side door latch and lock actuator terminal F (harness-side).
Is the resistance less than 5 ohms between both terminals and ground?
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Yes
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Go to the next step.
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No
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Repair the circuit.
Inspect the system for normal operation.
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5
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INSPECT DRIVER-SIDE DOOR KEY CYLINDER SWITCH GROUND
Measure the resistance between driver-side door latch and lock actuator terminal E (harness-side) and ground.
Is the resistance less than 5 ohms?
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Yes
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Install a new driver-side front door latch and lock actuator. (See FRONT DOOR LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION.)
Inspect the system for normal operation.
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No
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Repair the circuit.
Inspect the system for normal operation.
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6
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INSPECT LIFTGATE KEY CYLINDER SWITCH CIRCUIT INPUT TO THE GEM
Measure the resistance between GEM connector terminal 2K (harness-side) and ground while turning the liftgate key cylinder switch to UNLOCK.
Measure the resistance between GEM connector terminal 2M (harness-side) and ground while turning the liftgate key cylinder switch to LOCK.
Is the resistance less than 5 ohms?
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Yes
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Go to Step 10.
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No
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Go to the next step.
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7
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INSPECT LIFTGATE KEY CYLINDER SWITCH CIRCUIT FOR SHORT TO B+
Turn the ignition switch to the ON position.
Measure the voltage between GEM connector terminal 2K (harness-side) and ground, and the voltage between GEM connector terminal 2M (harness-side) and ground.
Is there voltage?
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Yes
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Repair the circuit.
Inspect the system for normal operation.
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No
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Go to the next step.
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8
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INSPECT LIFTGATE KEY CYLINDER SWITCH CIRCUIT FOR OPEN CIRCUIT
Disconnect liftgate key cylinder switch connector.
Measure the resistance between GEM connector terminal 2K (harness-side) and liftgate key cylinder switch connector terminal C (harness-side), and GEM connector terminal 2M (harness-side) and liftgate key cylinder switch connector terminal A (harness-side).
Is the resistance less than 5 ohms between both terminals?
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Yes
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Go to the next step.
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No
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Repair the suspected circuit.
Inspect the system for normal operation.
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9
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INSPECT LIFTGATE KEY CYLINDER SWITCH GROUND
Measure the resistance between liftgate key cylinder switch connector terminal B (harness-side) and ground.
Is the resistance less than 5 ohms?
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Yes
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Install a new liftgate key cylinder switch.
Inspect the system for normal operation.
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No
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Repair the circuit.
Inspect the system for normal operation.
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10
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INSPECT GEM FOR NORMAL OPERATION
Disconnect the all GEM connectors.
Inspect for the following items:
• Corrosion
• Terminal separation
Connect all the connectors and verify that their positions are correct.
Operate the system and inspect for any malfunction.
Is there any malfunction?
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Yes
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Install a new GEM. (See GENERIC ELECTRONIC MODULE (GEM) REMOVAL/INSTALLATION.)
Clear the DTC and perform the DTC inspection.
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No
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Verify that the system operates normally at this stage. The malfunction may result from loose connectors or corrosion.
Clear the DTC and perform the DTC inspection.
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