P0745-11

Diagnostic Trouble Code (DTC) Index

Transmission Control Module (TCM) - 8 Speed (8HP70 Applications)

CAUTION: Diagnosis by substitution from a donor vehicle is NOT acceptable. Substitution of control modules does not guarantee confirmation of a fault, and may also cause additional faults in the vehicle being tested and/or the donor vehicle

CAUTION: When probing connectors to take measurements in the course of the pinpoint tests, use the adaptor kit, part number 3548-1358-00

NOTE:
If the control module or a component is suspect and the vehicle remains under manufacturer warranty, refer to the warranty policy and procedures manual (section B1.2), or determine if any prior approval programme is in operation, prior to the installation of a new module/component

NOTE:
Generic scan tools may not read the codes listed, or may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system)

NOTE:
When performing voltage or resistance tests, always use a digital multimeter accurate to three decimal places and with a current calibration certificate. When testing resistance, always take the resistance of the digital multimeter leads into account

NOTE:
Check and rectify basic faults before beginning diagnostic routines involving pinpoint tests

NOTE:
Inspect connectors for signs of water ingress, and pins for damage and/or corrosion

NOTE:
If diagnostic trouble codes are recorded and, after performing the pinpoint tests, a fault is not present, an intermittent concern may be the cause. Always check for loose connections and corroded terminals

NOTE:
Where an 'on demand self-test' is referred to, this can be accessed via the 'diagnostic trouble code monitor' tab on the manufacturers approved diagnostic system

NOTE:
If a failure condition is reported indicating the need to renew the transmission assembly on a vehicle that remains under manufacturer warranty, an authorization request must first go through the warranty prior approval programme before any work is begun
The table below lists all diagnostic trouble codes (DTCs) that could be logged in the transmission control module, for additional Diagnosis and Testing information refer to the relevant Diagnosis and Testing Section. For additional information, refer to Diagnostics - TDV8 4.4L Diesel, Vehicles With: 8HP70 8-Speed Automatic Transmission AWD