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- Using M.U.T.-III, perform CAN busline diagnosis.
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Q.
Is the check result normal?
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Correct CAN busline (Refer to GROUP54D - Diagnosis - Can Bus
Diagnosis Table ), and then go to Step 6 .
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- Confirm whether the diagnosis codes are output from ASTC-ECU.
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Q.
Is the diagnosis code output?
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Perform the troubleshooting of ASTC (Refer to GROUP 35C - Inspection
Chart For Diagnosis Code ).
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- Confirm whether Diagnosis Code U1102: ASTC-ECU time-out is output from the
following ECU having CAN communication with ASTC-ECU
- EPS-ECU
- Combination meter-ECU
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Q.
Is the diagnosis code output?
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- Reconfirm whether the diagnosis codes are output from engine-ECU <M/T>
or engine-A/T-ECU <A/T>.
- Erase the diagnosis codes being output.
- Ignition switch: "LOCK" (OFF) to ON
- Confirm whether the diagnosis codes are output.
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Q.
Is the diagnosis code output?
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Replace the ASTC-ECU. Then go to Step 6 .
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Intermittent malfunction in CAN busline between engine-ECU <M/T> or engine-A/T-ECU <A/T>
(Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How
to Cope with Intermittent Malfunctions ).
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- Reconfirm whether the diagnosis codes are output from engine-ECU <M/T>
or engine-A/T-ECU <A/T>.
- Erase the diagnosis codes being output.
- Ignition switch: "LOCK" (OFF) to ON
- Confirm whether the diagnosis codes are output.
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Q.
Is the diagnosis code output?
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Replace the engine-ECU <M/T> or engine-A/T-ECU <A/T>. Then go to Step
6 .
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Intermittent malfunction in CAN busline between engine-ECU <M/T> or engine-A/T-ECU <A/T>
and ASTC-ECU (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How
to Cope with Intermittent Malfunctions ).
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|
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- Reconfirm whether the diagnosis codes are output from engine-ECU <M/T>
or engine-A/T-ECU <A/T>.
- Erase the diagnosis codes being output.
- Ignition switch: "LOCK" (OFF) to ON
- Confirm whether the diagnosis codes are output.
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Q.
Is the diagnosis code output?
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