OPERATION
  • A power voltage of 5 V is applied to the accelerator pedal position sensor (terminal No. 8) from the engine-A/T-ECU (terminal No. 97).
  • The power voltage is earthed to the engine-A/T-ECU (terminal No. 96) from the accelerator pedal position sensor (terminal No. 7).
  • The sensor signal is inputted to the engine-A/T-ECU (terminal No. 107) from the accelerator pedal position sensor output terminal (terminal No. 6).
FUNCTION
  • The accelerator pedal position sensor (sub) outputs voltage which corresponds to the accelerator pedal depression.
  • The engine-A/T-ECU checks whether the voltage is within a specified range.
TROUBLE JUDGMENT
Check Condition
  • Ignition switch is in "ON" position
Judgment Criteria
  • Accelerator pedal position sensor (sub) output voltage is 0.2 volt or less for 1 second. <Vehicles except for Australia, South africa>
  • Accelerator pedal position sensor (sub) output voltage is 0.2 volt or less for 0.3 second. <Vehicles for Australia, South africa>
PROBABLE CAUSE
  • Failed accelerator pedal position sensor
  • Open/short circuit in accelerator pedal position sensor circuit or loose connector contact
  • Failed engine-A/T-ECU
STEP 1. MUT-II/III data list
    1. Item 77: Accelerator pedal position sensor (sub)
Q: Is the check result normal?
YES:  Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points ).
NO:  Go to Step 2 .
       
Q: Is the check result normal?
YES:  Go to Step 3 .
NO:  Repair.
STEP 3. Check accelerator pedal position sensor itself.
Q: Is the check result normal?
YES:  Go to Step 4 .
NO:  Replace accelerator pedal position sensor.
       
  • Disconnect connector, and measure at harness side.
  • Ignition switch: ON
  • Voltage between terminal No. 8 and earth. <Vehicles except for Australia, South africa and Hong kong>
  • Voltage between terminal No. 7 and earth. <Vehicles for Australia, South africa and Hong kong>
OK: 4.9 - 5.1 V
Q: Is the check result normal?
YES:  Go to Step 8 .
NO:  Go to Step 5 .
   
Q: Is the check result normal?
YES:  Go to Step 6 .
NO:  Repair.
           
  • Check power supply line for open/short circuit.
Q: Is the check result normal?
YES:  Go to Step 7 .
NO:  Repair.
STEP 7. MUT-II/III data list
    1. Item 77: Accelerator pedal position sensor (sub)
Q: Is the check result normal?
YES:  Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points ).
NO:  Replace engine-A/T-ECU.
   
Q: Is the check result normal?
YES:  Go to Step 9 .
NO:  Repair.
           
  • Check power supply line for damage.
Q: Is the check result normal?
YES:  Go to Step 10 .
NO:  Repair.
           
  • Check earthing line for damage.
Q: Is the check result normal?
YES:  Go to Step 7 .
NO:  Repair.
©2004 Mitsubishi Motors Corporation