|
Code No. P2127:
Accelerator Pedal Position Sensor (Sub) Circuit Low Input
|
|
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
|
| |
| |
| STEP 1. MUT-II/III data list
- Refer to Data List Reference Table
.
- 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  .
|
| STEP 2. Connector check: B-124 <Vehicles except for Australia,
South africa and Hong kong>
or C-41 <Vehicles for Australia, South africa
and Hong kong>
accelerator pedal position sensor connector
|
|
Q: Is the check result normal?
YES:
Go to Step 3  .
NO:
Repair.
|
| STEP 3. Check accelerator pedal position sensor itself.
- Check accelerator pedal position sensor itself (Refer to
).
Q: Is the check result normal?
YES:
Go to Step 4  .
NO:
Replace accelerator pedal position sensor.
|
| STEP 4. Perform voltage measurement at B-124 <Vehicles except
for Australia, South africa and Hong kong>
or C-41 <Vehicles for Australia,
South africa and Hong kong>
accelerator pedal position sensor connector.
|
|
- Disconnect connector, and measure at harness side.
- 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  .
|
| STEP 5. Connector check: C-137 engine-A/T-ECU connector
|
|
Q: Is the check result normal?
YES:
Go to Step 6  .
NO:
Repair.
|
| STEP 6. Check harness between B-124 (terminal No.8) <Vehicles
except for Australia, South africa and Hong kong>
or C-41 (terminal No.7) <Vehicles
for Australia, South africa and Hong kong>
accelerator pedal position sensor connector
and C-137 (terminal No. 97) engine-A/T-ECU connector.
|
|
- 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
- Refer to Data List Reference Table
.
- 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.
|
| STEP 8. Connector check: C-137 engine-A/T-ECU connector
|
|
Q: Is the check result normal?
YES:
Go to Step 9  .
NO:
Repair.
|
| STEP 9. Check harness between B-124 (terminal No.8) <Vehicles
except for Australia, South africa and Hong kong>
or C-41 (terminal No.7) <Vehicles
for Australia, South africa and Hong kong>
accelerator pedal position sensor connector
and C-137 (terminal No. 97) engine-A/T-ECU connector.
|
|
- Check power supply line for damage.
Q: Is the check result normal?
YES:
Go to Step 10  .
NO:
Repair.
|
| STEP 10. Check harness between B-124 <Vehicles except for
Australia, South africa and Hong kong>
or C-41 <Vehicles for Australia, South
africa and Hong kong>
accelerator pedal position sensor connector and C-137 (terminal
No. 107) engine-A/T-ECU connector.
|
|
- Check earthing line for damage.
Q: Is the check result normal?
YES:
Go to Step 7  .
NO:
Repair.
|