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Code No.11 Auto-cruise Vacuum Pump Drive System
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DIAGNOSIS CODE SET CONDITIONS
This diagnosis code is set if the release valve, control valve or motor drive signals from the auto-cruise vacuum pump are not input to the auto-cruise control-ECU.
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PROBABLE CAUSES
- Malfunction of the connector.
- Malfunction of the harness.
- Malfunction of the auto-cruise vacuum pump.
- Malfunction of the auto-cruise control-ECU.
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STEP 1. Check the auto-cruise vacuum pump.
Refer to  .
Q: Is the check result normal?
YES:
Go to Step 2  .
NO:
Replace the auto-cruise vacuum pump (Refer to ). Then go to Step 5 .
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STEP 2. Check auto-cruise vacuum pump connector A-03, auto-cruise control-ECU connector C-113 and intermediate connectors C-14 and C-106 <R.H. drive vehicles only>. Q: Is the check result normal?
YES:
Go to Step 3 .
NO:
Repair or replace connector. Then go to Step 5 .
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STEP 3. Check the harness between the auto-cruise vacuum pump connector A-03 and auto-cruise control-ECU connector C-113. Q: Is the check result normal?
YES:
Go to Step 4 .
NO:
Repair harness. Then go to Step 5 .
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STEP 4. Check the MUT-II/III diagnosis code No. 11. Q: Is the MUT-II/III diagnosis code No. 11 set?
YES:
Replace the auto-cruise control-ECU (Refer to ). Then go to Step 5 .
NO:
This malfunction is intermittent (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points ).
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STEP 5. Check the MUT-II/III diagnosis code No. 11. Q: Is the MUT-II/III diagnosis code No. 11 set?
YES:
Return to Step 1 .
NO:
This procedure is complete.
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