Jeep Grand Cherokee WK. Manual — part 1523
C1403-TRANSFER CASE RANGE POSITION SENSOR PERFORMANCE (CONTINUED)
6.
(T313) MODE SENSOR SIGNAL CIRCUIT HIGH RESISTANCE
Turn the ignition off.
Disconnect the Final Drive Control Module C2 harness connector.
Measure the resistance of the (T313) Mode Sensor Signal circuit.
Is the resistance above 5.0 ohms?
Yes
>> Repair the high resistance in the (T313) Mode Sensor Sig-
nal circuit.
Perform the TRANSFER CASE VERIFICATION TEST-
VER 1.
No
>> Go to 7
7.
(T313) MODE SENSOR SIGNAL CIRCUIT SHORTED TO
GROUND
Measure the resistance between ground and the (T313) Mode Sensor
Signal circuit.
Is the resistance below 5.0 ohms?
Yes
>> Repair the (T313) Mode Sensor Signal circuit for a short to
ground.
Perform the TRANSFER CASE VERIFICATION TEST-
VER 1.
No
>> Go to 8
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TRANSFER CASE - ELECTRICAL DIAGNOSTICS
WK
C1403-TRANSFER CASE RANGE POSITION SENSOR PERFORMANCE (CONTINUED)
8.
(T313) MODE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
Turn the ignition on.
Measure the voltage of the (T313) Mode Sensor Signal circuit.
Is there any voltage present?
Yes
>> Repair the (T313) Mode Sensor Signal circuit for a short to
voltage.
Perform the TRANSFER CASE VERIFICATION TEST-
VER 1.
No
>> Go to 9
9.
(K594) DRIVETRAIN SENSOR RETURN CIRCUIT HIGH RESISTANCE
Measure the resistance of the (K594) Drivetrain Sensor Return circuit.
Is the resistance below 5.0 ohms?
Yes
>> Go to 10
No
>> Repair the high resistance in the (K594) Drivetrain Sensor
Return circuit.
Perform the TRANSFER CASE VERIFICATION TEST-
VER 1.
WK
TRANSFER CASE - ELECTRICAL DIAGNOSTICS
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C1403-TRANSFER CASE RANGE POSITION SENSOR PERFORMANCE (CONTINUED)
10.
FINAL DRIVE CONTROL MODULE
View repair.
Repair
Replace the Final Drive Control Module in accordance with the Service Information.
Perform the TRANSFER CASE VERIFICATION TEST-VER 1.
11.
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.
While monitoring the scan tool data relative to this circuit, move the selector switch to each position several times.
Look for the data to change other than as expected or for the DTC to reset.
Were any problems found?
Yes
>> Repair as necessary.
Perform the TRANSFER CASE VERIFICATION TEST-VER 1.
No
>> Test complete.
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TRANSFER CASE - ELECTRICAL DIAGNOSTICS
WK
C1404-TRANSFER CASE RANGE POSITION SENSOR CIRCUIT LOW
WK
TRANSFER CASE - ELECTRICAL DIAGNOSTICS
21 - 905
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