Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation
2016-2017 Nissan Leaf 30 kWh Single Motor FWD
Description
The dual accelerator pedal position sensors report conflicting values.
Symptoms
- Limp mode
- No throttle response
- Check engine light
- Engine at idle only
Common Causes
- Failed APP sensor
- Corroded pedal connector
- Wiring fault
- 5V reference issue
Diagnostic Steps
- Check APP sensor D and E voltages
- Verify 5V reference
- Inspect pedal connector
Repair Notes
Replace accelerator pedal assembly. Check shared 5V reference circuit.
Related Codes
Other Powertrain Codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0115Engine Coolant Temperature (ECT) Sensor 1 Circuit
- P0116ECT Sensor 1 Circuit Range/Performance
- P0117ECT Sensor 1 Circuit Low Input
- P0118ECT Sensor 1 Circuit High Input
- P0119ECT Sensor 1 Circuit Intermittent
- P0125Insufficient Coolant Temperature for Closed Loop Fuel Control
P2138 on Other Vehicles
Nissan 200SX
1995-1998 1.6L I4 GA16DE
Nissan 200SX SE-R
1995-1998 2.0L I4 SR20DE
Nissan 240SX
1995-1998 2.4L I4 KA24DE
Nissan 300ZX
1990-1996 3.0L V6 VG30DE
Nissan 300ZX Twin Turbo
1990-1996 3.0L Twin-Turbo V6 VG30DETT
Nissan 350Z
2003-2006 3.5L V6 VQ35DE
Nissan 350Z
2007-2009 3.5L V6 VQ35HR
Nissan 370Z
2009-2020 3.7L V6 VQ37VHR
Common Questions
What does code P2138 mean on a 2016-2017 Nissan Leaf?
P2138 stands for "Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation". The dual accelerator pedal position sensors report conflicting values.
What are the symptoms of P2138 on a Nissan Leaf?
Common symptoms of P2138 include: Limp mode, No throttle response, Check engine light, Engine at idle only.
What causes P2138 on a 2016-2017 Nissan Leaf?
Common causes of P2138 include: Failed APP sensor, Corroded pedal connector, Wiring fault, 5V reference issue.