[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
13 -FUEL > 13A-DIRECT INJECTION AND MULTIPOINT FUEL INJECTION (DI AND MPI) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > CODE NO. P2138 ACCELERATOR PEDAL POSITION SENSOR (MAIN AND SUB) RANGE/PERFORMANCE PROBLEM
Code No. P2138: Accelerator Pedal Position Sensor (main and sub) Range/Performance Problem
 
 
 
 
OPERATION
  • Check code No. P2122: Accelerator pedal position sensor (main) circuit low input (Refer to ).
  • Check code No. P2127: Accelerator pedal position sensor (sub) circuit low input (Refer to ).
 
 
FUNCTION
  • Engine-ECU checks the accelerator pedal position sensor output signal characteristics for abnormal conditions.
 
 
TROUBLE JUDGEMENT
Check Conditions
  • Ignition switch is "ON" position.
  • Accelerator pedal position sensor (main) output voltage is more than 0.2 V and less than 4.8 V.
  • Accelerator pedal position sensor (sub) output voltage is more than 0.2 V and less than 4.8 V.
Judgement Criterion
  • The difference is 0.4 V or more between the output voltages multiplied by two of the accelerator pedal position sensor (sub) and the output voltage of the accelerator pedal position sensor (main).
 
 
FAIL-SAFE AND BACKUP FUNCTION
  • Throttle opening degree is restricted.
  • Throttle opening degree position is in default position if accelerator pedal position sensor (sub) fails.
 
 
PROBABLE CAUSES
  • Failed accelerator pedal position sensor
  • Harness damage in accelerator pedal position sensor circuit or loose connector contact
  • Failed engine-ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. Perform resistance measurement at accelerator pedal position sensor connector.
  • Disconnect connector, and measure at harness side.
  • Resistance between terminal engine-ECU APSE line and body earth.
OK: Continuity (2 Ω or less)
Is the check result normal?
Go to Step 4.
Go to Step 2.
 
STEP 2. Check of damage in APSE line between accelerator pedal position sensor connector and engine-ECU connector.
Is the check result normal?
Go to Step 3.
Repair the connector(s) or wiring harness.
 
STEP 3. M.U.T.-IIISE diagnosis code
  • Reconfirmation of diagnosis code.
Is the diagnosis code set?
Replace the engine-ECU.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunctions ).
 
STEP 4. Perform resistance measurement at accelerator pedal position sensor connector.
  • Disconnect connector, and measure at harness side.
  • Resistance between terminal APE line and earth.
OK: Continuity (2 Ω or less)
Is the check result normal?
Go to Step 6.
Go to Step 5.
 
STEP 5. Check of damage in APE line between accelerator pedal position sensor connector and engine-ECU connector.
Is the check result normal?
Go to Step 3.
Repair the connector(s) or wiring harness.
 
STEP 6. Check of damage in APS5 line between accelerator pedal position sensor connector and engine-ECU connector.
Is the check result normal?
Go to Step 7.
Repair the connector(s) or wiring harness.
 
STEP 7. Check of damage in AP5 line between accelerator pedal position sensor connector and engine-ECU connector.
Is the check result normal?
Go to Step 8.
Repair the connector(s) or wiring harness.
 
STEP 8. Check of damage in APSM line between accelerator pedal position sensor connector and engine-ECU connector.
Is the check result normal?
Go to Step 9.
Repair the connector(s) or wiring harness.
 
STEP 9. Check of damage in APSS line between accelerator pedal position sensor connector and engine-ECU connector.
Is the check result normal?
Go to Step 10.
Repair the connector(s) or wiring harness.
 
STEP 10. Replace the accelerator pedal assembly
  • After replacing the accelerator pedal assembly, reconfirm whether the diagnosis code is set.
Is the diagnosis code set?
Replace the engine-ECU.
Check end.