DIAGNOSIS PROCEDURE |
STEP 1. M.U.T.-III data list |
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OK: At ambient temperature
(atmospheric temperature) or equivalent. |
Q.
Is the check result normal?
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Intermittent malfunction (Refer to
GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunctions ). |
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Go to Step 2 . |
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STEP 2. Connector check: B-32 air flow sensor connector |
Q.
Is the check result normal?
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Go to Step 3 . |
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Repair
or replace the connector. |
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STEP 3. Check intake air temperature sensor itself. |
Q.
Is the check result normal?
|
Go to Step 4 . |
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Replace the air flow sensor. |
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STEP 4. Perform voltage measurement at B-32 air flow sensor connector. |
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OK: 4.5 - 4.9 V |
Q.
Is the check result normal?
|
Go to Step 8 . |
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Go to Step 5 . |
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STEP 5. Connector check: D-246 engine-ECU <M/T> connector or D-217 engine-A/T-ECU <A/T> connector |
Q.
Is the check result normal?
|
Go to Step 6 . |
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Repair
or replace the connector. |
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STEP 6. Check harness between B-32 (terminal No. 1) air flow sensor connector and D-246 (terminal No. 99) engine-ECU <M/T> connector or D-217 (terminal No. 99) engine-A/T-ECU <A/T> connector. |
|
Q.
Is the check result normal?
|
Go to Step 7 . |
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Repair
the damaged harness wire. |
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STEP 7. M.U.T.-III data list |
|
OK: At ambient temperature
(atmospheric temperature) or equivalent. |
Q.
Is the check result normal?
|
Intermittent malfunction (Refer to
GROUP 00 - How to Use Troubleshooting/Inspection
Service Points - How to Cope with Intermittent Malfunctions ). |
|
Replace the engine-ECU <M/T>
or engine-A/T-ECU <A/T>. |
|
STEP 8. Perform resistance measurement at B-32 air flow sensor connector. |
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OK: Continuity (2 Ω or
less) |
Q.
Is the check result normal?
|
Go to Step 11 . |
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Go to Step 9 . |
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STEP 9. Connector check: D-246 engine-ECU <M/T> connector or D-217 engine-A/T-ECU <A/T> connector |
Q.
Is the check result normal?
|
|
|
Repair
or replace the connector. |
|
STEP 10. Check harness between B-32 (terminal No. 4) air flow sensor connector and D-246 (terminal No. 96) engine-ECU <M/T> connector or D-217 (terminal No. 96) engine-A/T-ECU <A/T> connector. |
|
|
Q.
Is the check result normal?
|
Go to Step 7 . |
|
Repair
the damaged harness wire. |
|
STEP 11. Connector check: D-246 engine-ECU <M/T> connector or D-217 engine-A/T-ECU <A/T> connector |
Q.
Is the check result normal?
|
Go to Step 12 . |
|
Repair
or replace the connector. |
|
STEP 12. Check harness between B-32 (terminal No. 1) air flow sensor connector and D-246 (terminal No. 99) engine-ECU <M/T> connector or D-217 (terminal No. 99) engine-A/T-ECU <A/T> connector. |
|
Q.
Is the check result normal?
|
Go to Step 7 . |
|
Repair
the damaged harness wire. |
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