TEST
ACTION
APPLICABILITY
15
Turn the ignition off to the lock position.
Disconnect the PCM harness connectors.
Check connectors - Clean/repair as necessary
NOTE: Resistance between the TCC Solenoid Control circuit and the
Governor Pressure Solenoid Control circuit should be 28 to 68 ohms.
Measure the resistance between the TCC Solenoid Control circuit and the Governor
Pressure Solenoid Control circuit in the PCM harness connector.
NOTE: Resistance between the TCC Solenoid Control circuit and the 3-4
Shift Solenoid Control circuit should be 50 to 120 ohms.
Measure the resistance between the TCC Solenoid Control circuit and the 3-4 shift
Solenoid Control circuit in the PCM harness connector.
Is the resistance of both measurements within the specified ranges?
without 45RFE
AUTO TRANS
Yes
→
Go To
16
No
→
Replace the Transmission Solenoid Assembly in accordance with
the Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
16
Turn the ignition off to the lock position.
Disconnect the PCM harness connectors.
Remove the Transmission Control Relay.
Check connectors - Clean/repair as necessary
NOTE: Resistance between the TCC Solenoid circuit and the circuits below
should be above 100 kohms.
Measure the resistance between the Transmission TCC Solenoid Control circuit and
the...
*Sensor Ground circuit in the C2 PCM harness connector.
*Transmission Temp Sensor Signal circuit in the PCM harness connector.
*Governor Pressure Sensor Signal circuit in the PCM harness connector.
*Transmission 5-volt Supply circuit in the C2 PCM harness connector.
Are the resistance values, to any of the listed circuits, below 100 kohms?
without 45RFE
AUTO TRANS
Yes
→
Replace the Transmission Solenoid Assembly in accordance with
the Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
No
→
Go To
17
17
If there are no possible causes remaining, view repair.
without 45RFE
AUTO TRANS
Repair
Replace the Powertrain Control Module in accordance with the
Service Information.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
18
At this time, the conditions required to set the DTC are not present.
NOTE: Use the Freeze Frame Data to help duplicate the conditions that set
the DTC. Pay particular attention to the DTC set conditions, such as, VSS,
MAP, ECT, and Load.
NOTE: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, broken, bent, pushed out, corroded terminals, or partially
broken wires.
NOTE: Refer to any technical service bulletins that may apply.
Were any problems found?
without 45RFE
AUTO TRANS
Yes
→
Repair as necessary.
Perform TRANSMISSION VERIFICATION TEST VER - 1.
No
→
Test Complete.
337
TRANSMISSION
P0743-TORQUE CONVERTER CLUTCH SOLENOID/TRANS RELAY CIR-
CUITS —
Continued