Dodge Durango (HB). Manual — part 1342
C1404- TRANSFER CASE RANGE POSITION SENSOR CIRCUIT LOW (CONTINUED)
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. (Refer to 8 - ELECTRICAL/ELECTRONIC
CONTROL MODULES/TRANSFER CASE CONTROL MODULE - DIAGNOSIS AND TESTING)
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. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/TRANSFER CASE CONTROL MODULE
- DIAGNOSIS AND TESTING)
No
>> Go to 7
7.
FRONT CONTROL MODULE
View repair.
Repair
Replace the Front Control Module.
Perform the TRANSFER CASE VERIFICATION TEST-VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC
CONTROL MODULES/TRANSFER CASE CONTROL MODULE - DIAGNOSIS AND TESTING)
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. (Refer to 8 - ELECTRICAL/ELECTRONIC
CONTROL MODULES/TRANSFER CASE CONTROL MODULE - DIAGNOSIS AND TESTING)
No
>> Test complete.
HB
TRANSFER CASE - ELECTRICAL DIAGNOSTICS
21 - 773
C1405- TRANSFER CASE RANGE POSITION SENSOR CIRCUIT HIGH
21 - 774
TRANSFER CASE - ELECTRICAL DIAGNOSTICS
HB
C1405- TRANSFER CASE RANGE POSITION SENSOR CIRCUIT HIGH (CONTINUED)
For a complete wiring diagram Refer to Section 8W
•
When Monitored:
Ignition on. Battery voltage between 9 and 16 volts
•
Set Condition:
FCM detects 5 volts on the Transfer Case Range Position Sensor signal circuit for 2 seconds
Possible Causes
INTERMITTENT CONDITION
(T103) 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
(D201) MODE SENSOR A CIRCUIT SHORTED TO VOLTAGE
(D201) MODE SENSOR A CIRCUIT OPEN
(G180) FCM SENSOR RETURN CIRCUIT OPEN
SHIFT MOTOR/MODE SENSOR ASSEMBLY
FRONT CONTROL MODULE
Diagnostic Test
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 volt-
age.
Perform the TRANSFER CASE VERIFICATION TEST-
VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/TRANSFER CASE CONTROL MODULE
- DIAGNOSIS AND TESTING)
No
>> Go to 3
HB
TRANSFER CASE - ELECTRICAL DIAGNOSTICS
21 - 775
C1405- TRANSFER CASE RANGE POSITION SENSOR CIRCUIT HIGH (CONTINUED)
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. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/TRANSFER CASE CONTROL MODULE
- DIAGNOSIS AND TESTING)
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 Sen-
sor 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. (Refer to 8 - ELECTRICAL/ELECTRONIC CON-
TROL MODULES/TRANSFER CASE CONTROL MODULE
- DIAGNOSIS AND TESTING)
No
>> Go to 5
21 - 776
TRANSFER CASE - ELECTRICAL DIAGNOSTICS
HB
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