i-SHIFT System Symptom Troubleshooting - i-SHIFT indicator stay on, but no DTCs are stored
i-SHIFT indicator stay on, but no DTCs are stored
Turn the ignition switch to ON (II).
Do the gauge self-diagnostic function.
Does the i-SHIFT indicator flash?
YES
-
Go to
Step 3
.
NO
-
Update the TCM if it does not have the latest software,
or substitute a known-good gauge control module, and recheck. If the i-SHIFT indicator circuit is OK,
replace the original gauge control module.
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Connect the HDS to the DLC.
Make sure the HDS communicates with the vehicle and the TCM. If it does not,
troubleshoot the DLC circuit.
Check for DTCs with the HDS.
Is DTC U0155 indicated?
YES
-
Go to the troubleshooting DTC U0155.
■
NO
-
Update the TCM if it does not have the latest software,
or
substitute a known-good TCM,
then recheck. If the symptom/indication goes away with a known-good TCM,
replace the original TCM.
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