[17] ENGINE AND EMISSION CONTROL - - AUTO-CRUISE CONTROL <4G64-VEHICLES WITH AUTO-CRUISE CONTROL SYSTEM> - DIAGNOSTIC TROUBLE CODE PROCEDURES - Code No.14 Stop Lamp Switch System | PRINT PAGE / INDEX / PRIOR / NEXT

Code No.14 Stop Lamp Switch System
DIAGNOSIS CODE SET CONDITIONS This diagnosis code is set when none of the drive signals from the release valve, control valve and motor of the auto-cruise vacuum pump are input to the auto-cruise control-ECU.
PROBABLE CAUSES Malfunction of the connector. Malfunction of the harness. Malfunction of the stop lamp switch. Malfunction of the auto-cruise vacuum pump. Malfunction of the auto-cruise control-ECU.
DIAGNOSIS PROCEDURE
STEP 1. Measure at auto-cruise vacuum pump connector A-03. Disconnect auto-cruise vacuum pump connector A-03 and measure at the harness side. Ignition switch: ON Auto-cruise control MAIN switch: ON Voltage between terminal 1 and body earth. OK: 10 volts or more (When brake pedal is released). Q: Is the check result normal? YES: Go to Step 2. NO: Go to Step 5.
STEP 2. Check the auto-cruise vacuum pump. Refer to . Q: Is the check result normal? YES: Go to Step 3. NO: Replace the auto-cruise vacuum pump. (Refer to ). Then go to Step 14.
STEP 3. 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 4. NO: Repair or replace connector. Then go to Step 14.
STEP 4. 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 13. NO: Repair harness. Then go to Step 14.
STEP 5. Measure at stop lamp switch connector C-101. Disconnect stop lamp switch connector C-101 and measure at the harness side. Ignition switch: ON Auto-cruise control MAIN switch: ON Voltage between terminal 3 and body earth. OK: 10 volts or more Q: Is the check result normal? YES: Go to Step 6. NO: Go to Step 9.
STEP 6. Check the stop lamp switch. Refer to . Q: Is the check result normal? YES: Go to Step 7. NO: Replace the stop lamp switch. (Refer to GROUP 35A - Brake Pedal ). Then go to Step 14.
STEP 7. Check stop lamp switch connector C-101, auto-cruise vacuum pump connector A-03 and intermediate connectors C-14. Q: Is the check result normal? YES: Go to Step 8. NO: Repair or replace connector. Then go to Step 14.
STEP 8. Check the harness between the stop lamp switch connector C-101 and auto-cruise vacuum pump connector A-03. Q: Is the check result normal? YES: This malfunction is intermittent. (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points ). NO: Repair harness. Then go to Step 14.
STEP 9. Measure at auto-cruise control-ECU connector C-113. Do not disconnect auto-cruise control-ECU connector C-113 and measure at the backprobing. Ignition switch: ON Auto-cruise control MAIN switch: ON Voltage between terminal 5 and body earth. OK: 10 volts or more (When brake pedal is released). Q: Is the check result normal? YES: Go to Step 10. NO: Go to Step 12.
STEP 10. Check stop lamp switch connector C-101 and intermediate connector C-106 <R.H. drive vehicles only>. Q: Is the check result normal? YES: Go to Step 11. NO: Repair or replace connector. Then go to Step 14.
STEP 11. Check the harness between the stop lamp switch connector C-101 and auto-cruise control-ECU connector C-113. Q: Is the check result normal? YES: Go to Step 13. NO: Repair harness. Then go to Step 14.
STEP 12. Check auto-cruise control-ECU connector C-113. Q: Is the check result normal? YES: Go to Step 13. NO: Repair or replace connector. Then go to Step 14.
STEP 13. Check the MUT-II/III diagnosis code No.14. Q: Is the MUT-II/III diagnosis code No. 14 set? YES: Replace the auto-cruise control-ECU. (Refer to ). Then go to Step 14. NO: This malfunction is intermittent. (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points ).
STEP 14. Check the MUT-II/III diagnosis code No.14. Q: Is the MUT-II/III diagnosis code No. 14 set? YES: Return to Step 1. NO: This procedure is complete.

[17] ENGINE AND EMISSION CONTROL - - AUTO-CRUISE CONTROL <4G64-VEHICLES WITH AUTO-CRUISE CONTROL SYSTEM> - DIAGNOSTIC TROUBLE CODE PROCEDURES - Code No.14 Stop Lamp Switch System | PRINT PAGE / INDEX / PRIOR / NEXT

©2004 Mitsubishi Motors Corporation