NOTE: If the control unit/gearbox is suspected and the vehicle is still under manufacturer warranty, refer to the warranty manual before installing a new unit/gearbox (subsection B1.2), or determine if there is any previously approved special program in operation.
NOTE: Universal Scan Tools cannot read the listed codes or can only read 5-digit codes. Match the 5 digits from the scan tool with the first 5 digits of the listed 7 digit code to identify the problem (the last 2 digits give additional information read by the diagnostic system approved by the manufacturer).
NOTE: Always use a digital multimeter when performing voltage or resistance tests (DMM) accurate to three decimal places and with a modern calibration certificate. When testing resistance, always consider the resistance of the DMM wires.
NOTE: Before starting diagnostic programs using Pinpoint tests, check and correct basic problems.
NOTE: Inspect the electrical connectors for signs of water intrusion and their pins for damage and/or corrosion.
NOTE: If DTCs are logged and there is no problem after performing Pinpoint tests, an intermittent problem may be the cause. Always check for loose connections and corroded contacts.
Complete list of diagnostic trouble codes (DTC), which can be registered in the vehicle, see section 100-00. For more information, please refer to: Index of diagnostic trouble codes (DTC) - Fault code Transmission Control Module (TCM) (100-00 General information, Description and principle of operation).
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