P1400moderate severityPowertrain
Sub-Throttle Position Sensor
on 1997 Toyota 4Runner 3.0L V6 · 4WD
What this code means
The ECM detected a malfunction in the sub-throttle position sensor circuit.
Symptoms
- CEL
- Poor throttle response
- Reduced power
- Idle fluctuation
Common causes
- Faulty sub-TPS
- Damaged wiring
- Throttle body contamination
- Faulty ECM
Diagnostic steps
- Test sensor voltage
- Inspect connector
- Clean throttle body
- Compare to specs
Repair notes
Replace sub-throttle sensor or clean throttle body.
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Other Powertrain codes on this vehicle
P0001
Fuel Volume Regulator Control Circuit/Open
P0001
Fuel Volume Regulator Control Circuit/Open
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0002
Fuel Volume Regulator Control Circuit Range/Performance
P0003
Fuel Volume Regulator Control Circuit Low
P0003
Fuel Volume Regulator Control Circuit Low
P0004
Fuel Volume Regulator Control Circuit High
P0004
Fuel Volume Regulator Control Circuit High
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1
P0010
Intake Camshaft Position Actuator Circuit/Open Bank 1