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Honda Fit/Jazz - DTC Troubleshooting: P0122 (7-1) (5MT)

DTC Troubleshooting: P0122 (7-1)

DTC P0122 (7-1): TP Sensor Circuit Low Voltage


1.Turn the ignition switch ON(II).

2.Check the throttle position with the scan tool.

Is there about 10% or 0.5 V when the throttle is fully closed and about 90% or 4.5 V when the throttle is fully opened?


YES - Intermittent failure, system is OK at this time. Check for poor connections or loose wires at the TP sensor and at the ECM/PCM.n


NO - Go to Substitute a known-good ECM/PCM and recheck. If the symptom/indication goes away, replace the original ECM/PCM.n


NO - Repair open in the wire between the ECM/PCM (A15) and the TP sensor.n


15.Measure voltage between ECM/PCM connector terminals A10 and A20. Substitute a known-good ECM/PCM and recheck. If the symptom/indication goes away, replace the original ECM/PCM.n

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