Transfer Case - Electrical Diagnostics: Other Dodge Durango II

Monitor Conditions

1. When Monitored: With the ignition on.

Set Conditions

1. Set Condition

Transfer Case Range Select Switch voltage less than 0.1568 volts for 5 seconds

Possible Causes

Possible Causes

INTERMITTENT CONDITION

(K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT OPEN

(K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT SHORTED TO GROUND

(K977) MODE SELECT CIRCUIT OPEN

(K977) MODE SELECT CIRCUIT SHORT TO GROUND

TRANSFER CASE SELECTOR SWITCH

INSTRUMENT CLUSTER

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1. TCASE (DTCM) SWITCH VOLTAGE LESS THAN 0.2 VOLTS Ignition on, engine not running. With the scan tool under Data Display, read the TCASE (DTCM) Switch voltage. Is the voltage less than 0.2 volts? Yes : Go To 2 NO : Go To 8
2. (K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT VOLTAGE LESS THAN 0.2 VOLTS Turn the ignition off. Disconnect the Transfer Case Selector Switch connector. Turn the ignition on.. Measure the voltage of the (K77) 5 Volt Selector Switch Supply circuit. Is the voltage less than 0.2 volts? Yes : Go To 3 NO : Go To 5
3. (K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT OPEN Turn the ignition off. Disconnect the Instrument Cluster C1 connector. Measure the resistance of the (K77) 5 Volt Selector Switch Supply circuit. Is the resistance greater than 5.0 ohms? Yes : Repair the (K77) 5 Volt Selector Switch Supply circuit for an open. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go To 4
4. (K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT SHORTED TO GROUND Measure the resistance between the (K77) 5 Volt Selector Switch Supply circuit and ground. Is the resistance less than 5.0 ohms? Yes : Repair the (K77) 5 Volt Selector Switch Supply circuit for a short to ground. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go To 7
5. TRANSFER CASE SELECTOR SWITCH Ignition on, engine not running. With the scan tool in Data Display, read the TCASE (DTCM) Switch voltage with the Transfer Case Selector Switch connector disconnected. Is the voltage greater than 4.5 volts? Yes : Replace the Transfer Case Selector Switch. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go To 6
6. (K977) MODE SELECT CIRCUIT SHORT TO GROUND Measure the resistance between the (K977) Mode Select circuit and ground. Is the resistance less than 5.0 ohms? Yes : Repair the (K977) Mode Select circuit for a short to ground. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go To 7
7. INSTRUMENT CLUSTER View repair. Repair Replace the Instrument Cluster in accordance with the Service Information. Perform the «BODY VERIFICATION TEST - VER 1»(ref-212762-S01756696562005122700000) and «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
8. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes : Repair as necessary. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Test complete.

Scheme 19

1. When Monitored: With the ignition on.

1. Set Condition: Transfer Case Range Select Switch voltage greater than 4.86 volts for 5 seconds

Possible Causes

1. INTERMITTENT CONDITION
2. (K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT SHORTED TO VOLTAGE
3. (K977) MODE SELECT CIRCUIT SHORTED TO VOLTAGE
4. (K977) MODE SELECT CIRCUIT OPEN
5. (Z973) TRANSFER CASE SELECTOR SWITCH GROUND CIRCUIT OPEN
6. TRANSFER CASE SELECTOR SWITCH
7. INSTRUMENT CLUSTER

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1. TCASE (DTCM) SWITCH VOLTAGE ABOVE 4.8 VOLTS Ignition on, engine not running. With the scan tool under Data Display, read the TCASE (DTCM) Switch voltage. Is the volage above 4.8 volts? Yes : Go To 2 NO : Go to 8
2. (K77) 5 VOLT SELECTOR SWITCH SUPPLY CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Transfer Case Selector Switch connector. Turn the ignition on. Measure the voltage of the (K77) 5 Volt Selector Switch Supply circuit. Is the voltage above 5.5 volts? Yes : Repair the (K77) 5 Volt Selector Switch Supply circuit for a short to voltage. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 3
3. (K977) MODE SELECT CIRCUIT SHORTED TO VOLTAGE Measure the voltage of the (K977) Mode Select circuit. Is the voltage above 5.5 volts? Yes : Repair the (K977) Mode Select circuit for a short to voltage. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 4
4. TRANSFER CASE SELECTOR SWITCH Turn the ignition off. Connect a jumper wire between the (Z973) ground circuit and the (K977) Mode Select circuit in the Transfer Case Selector Switch connector. Ignition on, engine not running. With the scan tool under Data Display, read the TCASE (DTCM) Switch voltage. NOTE: Remove the jumper wire before continuing. Is the voltage below 0.2 volts with the jumper wire in place? Yes : Replace the Transfer Case Selector Switch. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 5
5. (K977) MODE SELECT CIRCUIT OPEN Turn the ignition off. Disconnect the Instrument Cluster C2 connector. Measure the resistance of the (K977) Mode Select circuit. Is the resistance above 5.0 ohms? Yes : Repair the (K977) Mode Select circuit for an open. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go To 6
6. TRANSFER CASE SELECTOR SWITCH (Z973) GROUND CIRCUIT OPEN Measure the resistance of the Transfer Case Selector Switch (Z973) ground circuit. Is the resistance above 5.0 ohms? Yes : Repair the Transfer Case Selector Switch (Z973) ground circuit for an open. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go To 7
7. INSTRUMENT CLUSTER Repair Replace the Instrument Cluster in accordance with the Service Information. Perform the «BODY VERIFICATION TEST - VER 1»(ref-212762-S01756696562005122700000) and «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
8. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes : Repair as necessary. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Test complete.

Scheme 26

1. When Monitored: Ignition on. Battery voltage between 9 and 16 volts.

1. Set Condition: FCM detects a short to ground on the Transfer Case Position Sensor signal circuit for 2 seconds.

Possible Causes

1. INTERMITTENT CONDITION
2. (T103) 5 VOLT SUPPLY CIRCUIT OPEN
3. (T103) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
4. (D201) MODE SENSOR A CIRCUIT SHORTED TO GROUND
5. SHIFT MOTOR/MODE SENSOR ASSEMBLY
6. FRONT CONTROL MODULE

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1. T-CASE POSITION SENSOR VOLTAGE BELOW 0.2 VOLTS Ignition on, engine not running. With the scan tool under Data Display, read the T-Case Position Sensor voltage. Is the voltage below 0.2 volts? Yes : Go to 2 NO : Go to 8
2. (T103) 5 VOLT SUPPLY CIRCUIT VOLTAGE BELOW 0.2 VOLTS Turn the ignition off. Disconnect the Shift Motor/Mode Sensor connector. Turn the ignition on. Measure the voltage of the (T103) 5 Volt Supply circuit. Is the voltage below 0.2 volts? Yes : Go to 3 NO : Go to 5
3. (T103) 5 VOLT SUPPLY CIRCUIT OPEN Turn the ignition off. Disconnect the Front Control Module C1 connector. Measure the resistance of the (T103) 5 Volt Supply circuit. Is the resistance above 5.0 ohms? Yes : Repair the (T103) 5 Volt Supply circuit for an open. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 4
4. (T103) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (T103) 5 Volt Supply circuit. Is the resistance below 5.0 ohms? Yes : Repair the (T103) 5 Volt Supply circuit for a short to ground. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 7
5. SHIFT MOTOR/MODE SENSOR ASSEMBLY With the scan tool under Data Display, read the T-Case Position Sensor voltage. Is the voltage above 4.5 volts? Yes : Replace the Shift Motor/Mode Sensor Assembly. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 6
6. (D201) MODE SENSOR A CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (D201) Mode Sensor A circuit. Is the resistance below 5.0 ohms? Yes : Repair the (D201) Mode Sensor A circuit for a short to ground. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 7
7. FRONT CONTROL MODULE View repair. Repair Replace the Front Control Module. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
8. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes : Repair as necessary. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Test complete.

Scheme 33

1. When Monitored: Ignition on. Battery voltage between 9 and 16 volts

1. Set Condition: FCM detects 5 volts on the Transfer Case Range Position Sensor signal circuit for 2 seconds

Possible Causes

1. INTERMITTENT CONDITION
2. (T103) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
3. (D201) MODE SENSOR A CIRCUIT SHORTED TO VOLTAGE
4. (D201) MODE SENSOR A CIRCUIT OPEN
5. (G180) FCM SENSOR RETURN CIRCUIT OPEN
6. SHIFT MOTOR/MODE SENSOR ASSEMBLY
7. FRONT CONTROL MODULE

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1. T-CASE POSITION SENSOR VOLTAGE ABOVE 4.8 VOLTS Ignition on, engine not running. With the scan tool under Data Display, read the T-Case Position Sensor voltage. Is the voltage above 4.8 volts? Yes : Go To 2 NO : Go to 8
2. (T103) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Shift Motor/Mode Sensor connector. Turn the ignition on. Measure the voltage of the (T103) 5 Volt Supply circuit. Is the voltage above 5.5 volts? Yes : Repair the (T103) 5 Volt Supply circuit for a short to voltage. NO : Go to 3
3. (D201) MODE SENSOR A CIRCUIT SHORTED TO VOLTAGE Measure the voltage of the (D201) Mode Sensor A circuit. Is the voltage above 5.5 volts? Yes : Repair the (D201) Mode Sensor A circuit for a short to voltage. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 4
4. SHIFT MOTOR/MODE SENSOR ASSEMBLY Turn the ignition off. Connect a jumper wire between the (G180) FCM Sensor Return circuit and the (D201) Mode Sensor A circuit in the Shift Motor/Mode Sensor connector. Turn the ignition on. With the scan tool under Data Display, read the T-Case Position Sensor voltage. NOTE: Remove the jumper wire before continuing. Is the voltage below 0.2 volts? Yes : Replace the Shift Motor/Mode Sensor assembly. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 5
5. (D201) MODE SENSOR A CIRCUIT OPEN Turn the ignition off. Disconnect the Front Control Module C1 connector. Measure the resistance of the (D201) Mode Sensor A circuit. Is the resistance above 5.0 ohms? Yes : Repair the (D201) Mode Sensor A circuit for an open. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 6
6. (G180) FCM SENSOR RETURN CIRCUIT OPEN Measure the resistance of the (G180) FCM Sensor Return circuit. Yes : Repair the (G180) FCM Sensor Return circuit for an open. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 7
7. FRONT CONTROL MODULE View repair. Repair Replace the Front Control Module in accordance with the Service information.
8. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes : Repair as necessary. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Test complete.

Scheme 40

1. When Monitored: Ignition on. Battery voltage between 9 and 16 volts.

1. Set Condition: FCM detects low voltage for 2 seconds on the Shift Motor Brake Signal circuit with the feature off.

Possible Causes

1. INTERMITTENT CONDITION
2. (T300) SHIFT MOTOR BRAKE SIGNAL CIRCUIT OPEN
3. (T300) SHIFT MOTOR BRAKE SIGNAL CIRCUIT SHORTED TO GROUND
4. SHIFT MOTOR/MODE SENSOR ASSEMBLY
5. FRONT CONTROL MODULE

1. When Monitored: Ignition on. Battery voltage between 9 and 16 volts.

1. Set Condition: FCM detects high voltage for 0.5 seconds on the Transfer Case Brake Control Circuit with the feature ON

Possible Causes

1. INTERMITTENT CONDITION
2. (T300) SHIFT MOTOR BRAKE SIGNAL CIRCUIT SHORTED TO VOLTAGE
3. (T300) SHIFT MOTOR BRAKE SIGNAL CIRCUIT OPEN
4. SHIFT MOTOR/MODE SENSOR ASSEMBLY
5. POWER DISTRIBUTION MODULE
6. FRONT CONTROL MODULE

1. When Monitored: Ignition on. Battery voltage between 9 and 16 volts.

1. Set Condition: FCM detects low voltage on the Transfer Case Motor Control Circuit for 0.5 seconds.

Possible Causes

1. INTERMITTENT CONDITION
2. (T101) SHIFT MOTOR + (POS) CIRCUIT OPEN
3. (T102) SHIFT MOTOR - (NEG) CIRCUIT OPEN
4. (T101) SHIFT MOTOR + (POS) CIRCUIT SHORTED TO GROUND
5. (T102) SHIFT MOTOR - (NEG) CIRCUIT SHORTED TO GROUND
6. (T101) SHIFT MOTOR + (POS) CIRCUIT SHORTED TO (T102) SHIFT MOTOR - (NEG) CIRCUIT
7. SHIFT MOTOR/MODE SENSOR ASSEMBLY
8. FRONT CONTROL MODULE
9. POWER DISTRIBUTION MODULE

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Scheme 48

1. SHIFT MOTOR DTC IS ACTIVE Ignition on, engine not running. With the scan tool, Clear DTCs. Move the Shift control to each position, while monitoring the Data Display on the scan tool. Does the DTC reset? Yes : Go to 2 NO : Go to 10
2. SHIFT MOTOR CIRCUIT RESISTANCE AT FCM CONNECTOR Turn the ignition off. Remove the Front Control Module (FCM) from the Power Distribution Module (PDM). Measure the resistance between the Shift Motor (+) circuit and the Shift Motor (-) circuit in the FCM connector of the PDM. Is the resistance between 40 and 100 ohms? Yes : Go to 9 NO : Go to 3
3. SHIFT MOTOR CIRCUIT RESISTANCE AT PDM CONNECTOR Disconnect the Power Distribution Module (PDM) C2 connector. Measure the resistance between the Shift Motor (+) circuit and the Shift Motor (-) circuit at the PDM C2 connector. Is the resistance between 40 and 100 ohms? Yes : Replace the Power Distribution Module (PDM). Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 4
4. (T101) SHIFT MOTOR + (POS) CIRCUIT OPEN Disconnect the Shift Motor/Mode Sensor Assembly connector. Measure the resistance of the (T101) Shift Motor + (pos) circuit from the Shift Motor/Mode Sensor Assembly connector to the Power Distribution Module C2 connector. Is the resistance above 5.0 ohms? Yes : Repair the (T101) Shift Motor + (pos) circuit for an open. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 5
5. (T102) SHIFT MOTOR - (NEG) CIRCUIT OPEN Measure the resistance of the (T102) Shift Motor - (neg) circuit from the Shift Motor/Mode Sensor Assembly connector to the Power Distribution Module C2 connector. Is the resistance above 5.0 ohms? Yes : Repair the (T102) Shift Motor - (neg) circuit for an open. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 6
6. (T101) SHIFT MOTOR + (POS) CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (T101) Shift Motor + (pos) circuit at the Shift Motor/Mode Sensor Assembly connector. Is the resistance below 5.0 ohms? Yes : Repair the (T101) Shift Motor + (pos) circuit for a short to ground. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 7
7. (T102) SHIFT MOTOR - (NEG) CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (T102) Shift Motor - (neg) circuit at the Shift Motor/Mode Sensor Assembly connector. Is the resistance below 5.0 ohms? Yes : Repair the (T102) Shift Motor-(neg) circuit for a short to ground. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 8
8. (T101) SHIFT MOTOR + (POS) CIRCUIT SHORTED TO (T102) SHIFT MOTOR - (NEG) CIRCUIT Measure the resistance between (T101) Shift Motor + (pos) circuit and the (T102) Shift Motor - (neg) circuit at the Shift Motor/Mode Sensor Assembly connector. Is the resistance below 5.0 ohms? Yes : Repair the (T101) Shift Motor + (pos) circuit for a short to the (T102) Shift Motor - (neg) circuit. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Replace the Shift Motor/Mode Sensor assembly in accordance with the Service Information. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
9. FRONT CONTROL MODULE Using the wiring diagram/schematic as a guide, inspect all wiring and connectors that pertain to this circuit. Were any problems found? Yes : Repair as necessary. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Replace the Front Control Module in accordance with the Service Information. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
10. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes : Repair as necessary. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Test complete.

Scheme 49

1. Set Condition: FCM detects high voltage on the Transfer Case Motor Control Circuit for 2 seconds.

Possible Causes

1. INTERMITTENT CONDITION
2. (T101) SHIFT MOTOR + (POS) CIRCUIT OPEN
3. (T102) SHIFT MOTOR - (NEG) CIRCUIT OPEN
4. (T101) SHIFT MOTOR + (POS) CIRCUIT SHORTED TO GROUND
5. (T101) SHIFT MOTOR - (NEG) CIRCUIT SHORTED TO GROUND
6. (T101) SHIFT MOTOR + (POS) CIRCUIT SHORTED TO (T102) SHIFT MOTOR - (NEG) CIRCUIT
7. SHIFT MOTOR/MODE SENSOR ASSEMBLY
8. FRONT CONTROL MODULE
9. POWER DISTRIBUTION MODULE

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1. SHIFT MOTOR DTC IS ACTIVE Ignition on, engine not running. With the scan tool, Clear DTCs. Move the Shift control to each position, while monitoring the Data Display on the scan tool. Does the DTC reset? Yes : Go to 2 NO : Go to 10
2. SHIFT MOTOR CIRCUIT RESISTANCE AT FCM CONNECTOR Turn the ignition off. Remove the Front Control Module (FCM) from the Power Distribution Module (PDM). Measure the resistance between the Shift Motor (+) circuit and the Shift Motor (-) circuit in the FCM connector of the PDM. Is the resistance between 40 and 100 ohms? Yes : Go to 9 NO : Go to 3
3. SHIFT MOTOR CIRCUIT RESISTANCE AT PDM CONNECTOR Disconnect the Power Distribution Module (PDM) C2 connector. Measure the resistance between the Shift Motor (+) circuit and the Shift Motor (-) circuit at the PDM C2 connector. Is the resistance between 40 and 100 ohms? Yes : Replace the Power Distribution Module (PDM) in accordance with the Service information. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 4
4. (T101) SHIFT MOTOR + (POS) CIRCUIT OPEN Disconnect the Shift Motor/Mode Sensor Assembly connector. Measure the resistance of the (T101) Shift Motor + (pos) circuit from the Shift Motor/Mode Sensor Assembly connector to the Power Distribution Module C2 connector. Is the resistance above 5.0 ohms? Yes : Repair the (T101) Shift Motor + (pos) circuit for an open. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 5
5. (T102) SHIFT MOTOR - (NEG) CIRCUIT OPEN Measure the resistance of the (T102) Shift Motor - (neg) circuit from the Shift Motor/Mode Sensor Assembly connector to the Power Distribution Module C2 connector. Is the resistance above 5.0 ohms? Yes : Repair the (T102) Shift Motor - (neg) circuit for an open. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 6
6. (T101) SHIFT MOTOR + (POS) CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (T101) Shift Motor + (pos) circuit at the Shift Motor/Mode Sensor Assembly connector. Is the resistance below 5.0 ohms? Yes : Repair the (T101) Shift Motor + (pos) circuit for a short to ground. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 7
7. (T102) SHIFT MOTOR - (NEG) CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (T102) Shift Motor - (neg) circuit at the Shift Motor/Mode Sensor Assembly connector. Is the resistance below 5.0 ohms? Yes : Repair the (T102) Shift Motor - (neg) circuit for a short to ground. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 8
8. (T101) SHIFT MOTOR + (POS) CIRCUIT SHORTED TO (T102) SHIFT MOTOR - (NEG) CIRCUIT Measure the resistance between (T101) Shift Motor + (pos) circuit and the (T102) Shift Motor - (neg) circuit at the Shift Motor/Mode Sensor Assembly connector. Is the resistance below 5.0 ohms? Yes : Repair the (T101) Shift Motor + (pos) circuit for a short to the (T102) Shift Motor - (neg) circuit. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Replace the Shift Motor/Mode Sensor assembly in accordance with the Service Information. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
9. FRONT CONTROL MODULE Using the wiring diagram/schematic as a guide, inspect all wiring and connectors that pertain to this circuit. Were any problems found? Yes : Repair as necessary. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Replace the Front Control Module in accordance with the Service Information. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
10. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes : Repair as necessary. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Test complete.

Scheme 58

1. When Monitored: With the ignition on.

1. Set Condition: COM detects low voltage on the Neutral Indicator Control Circuit.

Possible Causes

1. INTERMITTENT CONDITION
2. (G95) 4WD NEUTRAL INDICATOR CIRCUIT OPEN
3. (G95) 4WD NEUTRAL INDICATOR CIRCUIT SHORTED TO GROUND
4. TRANSFER CASE SELECTOR SWIITCH
5. INSTRUMENT CLUSTER MODULE (CCN)

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1. NEUTRAL INDICATOR CONTROL CIRCUIT DTC IS ACTIVE Ignition on. With the scan tool, Clear DTCs. Shift the Transfer Case into neutral for 30 seconds. NOTE: To select or deselect Transfer Case Neutral, vehicle speed must be 0 MPH with the ignition ON, engine OFF, the brake pedal applied, and the transmission in neutral (auto trans) or the clutch pedal pressed (man trans). Press the Neutral button (if equipped) on the Transfer Case Selector Switch until the Neutral Indicator is illuminated. WARNING: Apply the parking brake. The vehicle may roll with the Transfer Case in neutral. NOTE: To verify that the Transfer Case is in Neutral, shift the automatic transmission into reverse and release the brake pedal for three seconds or shift the manual transmission into gear and slowly release the clutch pedal. There should be no vehicle movement if the Transfer Case is in Neutral. With the scan tool, Read DTCs. Does the Neutral Indicator DTC reset? Yes : Go to 2 NO : Go to 6
2. (G95) 4WD NEUTRAL INDICATOR CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Instrument Cluster Module (CCN) C3 connector. Measure the resistance between ground and the (G95) 4WD Neutral Indicator circuit. Is the resistance below 5.0 ohms? Yes : Go to 3 NO : Go to 4
3. TRANSFER CASE SELECTOR SWITCH Disconnect the Transfer Case Selector Switch connector. Measure the resistance between ground and the (G95) 4WD Neutral Indicator circuit. Is the resistance below 5.0 ohms? Yes : Repair the (G95) 4WD Neutral Indicator circuit for a short to ground. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Replace the Transfer Case Selector Switch. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
4. (G95) 4WD NEUTRAL INDICATOR CIRCUIT OPEN Disconnect the Transfer Case Selector Switch connector. Measure the resistance of the (G95) 4WD Neutral Indicator circuit. Is the resistance above 5.0 ohms? Yes : Repair the open (G95) 4WD Neutral Indicator circuit. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 5
5. INSTRUMENT CLUSTER MODULE View repair. Repair Replace the Instrument Cluster Module in accordance with the Service information. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
6. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes : Repair as necessary. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Test complete.

Scheme 63

1. When Monitored: With the ignition on.

1. Set Condition: CCM detects high voltage on the Neutral Indicator Control Circuit.

Possible Causes

1. INTERMITTENT CONDITION
2. (G95) 4WD NEUTRAL INDICATOR CIRCUIT OPEN
3. (G95) 4WD NEUTRAL INDICATOR CIRCUIT SHORTED TO VOLTAGE
4. TRANSFER CASE SELECTOR SWIITCH
5. INSTRUMENT CLUSTER MODULE (CCN)

Scheme 64

Scheme 65

Scheme 66

Scheme 67

1. NEUTRAL INDICATOR CONTROL CIRCUIT DTC IS ACTIVE Ignition on. With the scan tool, Clear DTCs. Shift the Transfer Case into neutral for 30 seconds. NOTE: To select or deselect Transfer Case Neutral, vehicle speed must be 0 MPH with the ignition ON, engine OFF, the brake pedal applied, and the transmission in neutral (auto trans) or the clutch pedal pressed (man trans). Press the Neutral button (if equipped) on the Transfer Case Selector Switch until the Neutral Indicator is illuminated. WARNING: Apply the parking brake. The vehicle may roll with the Transfer Case in neutral. NOTE: To verify that the Transfer Case is in Neutral, shift the automatic transmission into reverse and release the brake pedal for three seconds or shift the manual transmission into gear and slowly release the clutch pedal. There should be no vehicle movement if the Transfer Case is in Neutral. With the scan tool, Read DTCs. Does the Neutral Indicator DTC reset? Yes : Go to 2 NO : Go to 6
2. (G95) 4WD NEUTRAL INDICATOR CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Instrument Cluster Module (CCN) C3 connector. Turn the ignition on. Measure the voltage of the (G95) 4WD Neutral Indicator circuit. Is there any voltage present? Yes : Go to 3 NO : Go to 4
3. TRANSFER CASE SELECTOR SWITCH Disconnect the Transfer Case Selector Switch connector. Measure the voltage of the (G95) 4WD Neutral Indicator circuit. Is there any voltage present? Yes : Repair the (G95) 4WD Neutral Indicator circuit for a short to voltage. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Replace the Transfer Case Selector Switch. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
4. (G95) 4WD NEUTRAL INDICATOR CIRCUIT OPEN Disconnect the Transfer Case Selector Switch connector. Measure the resistance of the (G95) 4WD Neutral Indicator Control circuit. Is the resistance above 5.0 ohms? Yes : Repair the open (G95) 4WD Neutral Indicator circuit. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Go to 5
5. INSTRUMENT CLUSTER MODULE View repair. Repair Replace the Instrument Cluster Module in accordance with the Service information. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) .
6. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes : Repair as necessary. Perform the «TRANSFER CASE VERIFICATION TEST-VER 1»(ref-212831-S18821027502005122700000) . NO : Test complete.