Chrysler Crossfire. Manual — part 748
(P0753) 1-2/4-5 SOLENOID CIRCUIT (CONTINUED)
2.
CHECK FOR CURRENT DTC
Note: If the TCM detects and stores a DTC, the TCM also stores
the engine/vehicle operating conditions under which the DTC was
set. Some of these conditions are displayed on the DRB III
T
at the
same time the DTC is displayed.
Note: Before erasing stored DTCs, record these conditions.
Attempting to duplicate these conditions may assist when check-
ing for an active DTC.
Turn the ignition on.
With the DRB III
T
, erase Transmission DTCs.
Note: It maybe necessary to road test the vehicle for this DTC to
set.
With the DRB III
T
, read Transmission DTCs.
Did this DTC set again?
Yes
>> Go To 3
No
>> Go To 7
3.
1-2/4-5 SOLENOID CONTROL CIRCUIT OPEN
Turn the ignition off.
Disconnect the Transmission Control Module C2 harness connector.
Disconnect the Transmission Solenoid Assembly harness connector
Note: Check connectors - Clean/repair as necessary.
Measure the resistance of the 1-2/4-5 Solenoid Control circuit from the
TCM harness connector to the Transmission Solenoid Assembly har-
ness connector.
Is the resistance below 5.0 ohms?
Yes
>>
Go To 4
No
>> Repair the 1-2/4-5 Solenoid Control circuit for an open.
Perform NAG1 TRANSMISSION VERIFICATION TEST.
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NAG1 - ELECTRICAL DIAGNOSTICS
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(P0753) 1-2/4-5 SOLENOID CIRCUIT (CONTINUED)
4.
Test 1-2/4-5 SOLENOID CONTROL CIRCUIT SHORT TO GROUND
With the ignition off.
Measure the resistance between ground and the 1-2/4-5 Solenoid
Control circuit.
Is the resistance above 100 kohms?
Yes
>> Go To 5
No
>> Repair the 1-2/4-5 Solenoid Control circuit for a short to
ground.
Perform NAG1 TRANSMISSION VERIFICATION TEST.
5.
1-2/4-5 SOLENOID CONTROL CIRCUIT SHORT TO OTHER CIRCUITS
With the ignition off.
Measure the resistance between the 1-2/4-5 Solenoid Control circuit
and all other circuits in the Transmission Solenoid Assembly harness
connector.
Is the resistance above 100 kohms for all measurements?
Yes
>> Go To 6
No
>> Repair the 1-2/4-5 Solenoid Control circuit for a short to
other circuit(s).
Perform NAG1 TRANSMISSION VERIFICATION TEST.
6.
1-2/4-5 SOLENOID RESISTANCE OUT OF TOLERANCE
With the ignition off.
Reconnect the Transmission Solenoid Assembly harness connector.
Measure the resistance between the 1-2/4-5 Solenoid Control circuit
and the Solenoid Supply Voltage circuit at the Transmission Control
Module C2 harness connector.
Is the resistance between 2.5 and 6.5 ohms?
Yes
>> Replace the Transmission Control Module. (Refer to 8 -
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
TRANSMISSION CONTROL MODULE - REMOVAL).
Perform NAG1 TRANSMISSION VERIFICATION TEST.
No
>> Replace the 1-2/4-5 Solenoid. (Refer to 21 - TRANSMIS-
SION/TRANSAXLE/AUTOMATIC
-
NAG1/ELECTROHY-
DRAULIC UNIT - REMOVAL).
Perform NAG1 TRANSMISSION VERIFICATION TEST.
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NAG1 - ELECTRICAL DIAGNOSTICS
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(P0753) 1-2/4-5 SOLENOID CIRCUIT (CONTINUED)
7.
INTERMITTENT WIRING AND CONNECTORS
The condition that caused this DTC to set is currently not present. Inspect the related wiring harness for a possible
intermittent condition.
Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
Wiggle the wires while checking for shorts and open circuits.
Note: Check for any Technical Service Bulletins that may apply.
Were any problems found?
Yes
>> Repair as necessary.
Perform NAG1 TRANSMISSION VERIFICATION TEST.
No
>>
Test Complete.
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(P0753) 1–2/4–5 SOLENOID CIRCUIT SHORT TO GROUND
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NAG1 - ELECTRICAL DIAGNOSTICS
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