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TEST ACTION APPLICABILITY
6 If there are no possible causes remaining, view repair. All
Repair
Replace the ATC Remote Sensor.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
7 Turn the ignition off.
Disconnect the ATC Remote Sensor harness connector.
Measure the resistance of the Sensor Return circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 8
No®Repair the Sensor Return circuit for an open.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
8 If there are no possible causes remaining, view repair. All
Repair
Replace the ATC.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
9 Turn the ignition off.
Disconnect the ATC Remote Sensor harness connector.
Disconnect the ATC C3 harness connector.
Turn the ignition on.
Measure the voltage of the KDB 2 Clock circuit.
Is the voltage above 1.0 volt?All
Ye s®Repair the KDB 2 Clock circuit for a short to voltage.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 10
10 Turn the ignition off.
Disconnect the ATC Remote Sensor harness connector.
Disconnect the ATC C3 harness connector.
Measure the resistance between ground and the KDB 2 Clock circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 11
No®Repair the KDB 2 Clock circuit for a short to ground.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
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FRONT IR SENSOR NOT CALIBRATED (ACTIVE) ÐContinued
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TEST ACTION APPLICABILITY
11 Turn the ignition off.
Disconnect the ATC Remote Sensor harness connector.
Disconnect the ATC C3 harness connector.
Measure the resistance of the KDB 2 Clock circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 12
No®Repair the KDB 2 Clock circuit for an open.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
12 If there are no possible causes remaining, view repair. All
Repair
Replace the ATC.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
13 Turn the ignition off.
Disconnect the ATC Remote Sensor harness connector.
Disconnect the ATC C3 harness connector.
Measure the resistance between ground and the KDB 2 Data circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 14
No®Repair the KDB 2 Data circuit for a short to ground.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
14 Turn the ignition off.
Disconnect the ATC Remote Sensor harness connector.
Disconnect the ATC C3 harness connector.
Measure the resistance of the KDB 2 Data circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 15
No®Repair the KDB 2 Data circuit for an open.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
15 If there are no possible causes remaining, view repair. All
Repair
Replace the ATC.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
249
AUTOMATIC TEMPERATURE CONTROL
FRONT IR SENSOR NOT CALIBRATED (ACTIVE) ÐContinued
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TEST ACTION APPLICABILITY
16 Turn the ignition off.
Disconnect the ATC Remote Sensor harness connector.
Disconnect the ATC C3 harness connector.
Measure the resistance of the Protected Ignition circuit.
Is the resistance below 5.0 ohms?All
Ye s®Replace the ATC.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
No®Repair the Protected Ignition circuit for an open.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
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FRONT IR SENSOR NOT CALIBRATED (ACTIVE) ÐContinued
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Symptom:
FRONT KEYBOARD COMMUNICATION FAULT (ACTIVE)
POSSIBLE CAUSES
AT C
TEST ACTION APPLICABILITY
1 This DTC indicates a fault in the ATC.
View repair.All
Repair
Replace the ATC.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
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AUTOMATIC TEMPERATURE CONTROL
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Symptom:
FRONT MODE DOOR NOT RESPONDING (ACTIVE)
When Monitored and Set Condition:
FRONT MODE DOOR NOT RESPONDING (ACTIVE)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set if the ATC does not receive feedback pulses within 5
seconds of the drive voltage being applied.
POSSIBLE CAUSES
MODE DOOR DRIVER CIRCUIT (A) SHORTED TO GROUND
MODE DOOR DRIVER CIRCUIT (B) SHORTED TO GROUND
MODE DOOR DRIVER CIRCUITS (A) AND (B) SHORTED TOGETHER
MODE DOOR DRIVER CIRCUIT (A) OPEN
MODE DOOR DRIVER CIRCUIT (B) OPEN
AT C
MODE DOOR ACTUATOR
TEST ACTION APPLICABILITY
1 Turn the ignition off.
Disconnect the Mode Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance between ground and the Mode Door Driver (A) circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 2
No®Repair the Mode Door Driver (A) circuit for a short to ground.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
2 Turn the ignition off.
Disconnect the Mode Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance between ground and the Mode Door Driver (B) circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 3
No®Repair the Mode Door Driver (B) circuit for a short to ground.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
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TEST ACTION APPLICABILITY
3 Turn the ignition off.
Disconnect the Mode Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance between the Mode Door Driver (B) circuit and the Mode Door
Driver (A) circuit.
Is the resistance above 100k ohms?All
Ye s®Go To 4
No®Repair the Mode Door Driver (A) and (B) circuits for a short
together.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
4 Turn the ignition off.
Disconnect the Mode Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance of the Mode Door Driver (A) circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 5
No®Repair the Mode Door Driver (A) circuit for an open.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
5 Turn the ignition off.
Disconnect the Mode Door Actuator harness connector.
Disconnect the ATC C1 harness connector.
Measure the resistance of the Mode Door Driver (B) circuit.
Is the resistance below 5.0 ohms?All
Ye s®Go To 6
No®Repair the Mode Door Driver (B) circuit for an open.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
6 Turn the ignition off.
Disconnect the ATC C1 harness connector.
Measure the resistance between the Mode Door Driver (A) circuit and the Mode Door
Driver (B) circuit.
Is the resistance between 26.0 and 46.0 ohms?All
Ye s®Replace the ATC.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 7
7 If there are no possible causes remaining, view repair. All
Repair
Replace the Mode Door Actuator.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
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FRONT MODE DOOR NOT RESPONDING (ACTIVE) ÐContinued
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Symptom:
FRONT MODE DOOR TRAVEL TOO LARGE (ACTIVE)
When Monitored and Set Condition:
FRONT MODE DOOR TRAVEL TOO LARGE (ACTIVE)
When Monitored: With the ignition on and the IOD fuse installed.
Set Condition: This DTC is set when the ATC monitors the travel range during system
initialization and the measured range is greater than expected.
POSSIBLE CAUSES
CHECK THE ATC FOR DTCS
MODE DOOR ACTUATOR
MODE DOOR LINKAGE
AT C
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRB, read the active ATC DTCs.
Is the FRONT MODE DOOR NOT RESPONDING DTC set?All
Ye s®Return to the symptom list and choose the symptom.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 2
2 Turn the ignition off.
Remove the Mode Door Actuator.
By hand, attempt to rotate the Mode Door Actuator in both directions.
Did the Mode Door Actuator turn in either direction?All
Ye s®Replace the Mode Door Actuator.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
No®Go To 3
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TEST ACTION APPLICABILITY
3 Remove the Mode Door Actuator. Rotate the mode doors (doors only). Note: These
should rotate approximately 45 degrees from stop to stop.
Inspect the mode door linkage for excessive wear or missing linkage.
Were any mechanical problems found?All
Ye s®Repair or replace the mode door/linkage as necessary.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
No®Replace the ATC.
With the DRBIIIt, reset the ATC after repair/replacement is
complete.
Perform BODY VERIFICATION TEST - VER 1.
255
AUTOMATIC TEMPERATURE CONTROL
FRONT MODE DOOR TRAVEL TOO LARGE (ACTIVE) ÐContinued