i-SHIFT System Symptom Troubleshooting - i-SHIFT indicator stays 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 (tach), and recheck. If the i-SHIFT indicator circuit is OK,
replace the original gauge control module (tach).
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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; R18A2 engine model,
L13Z1 engine model.
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; R18A2 engine model,
L13Z1 engine model.
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