L13A 5MT without ETCS)

DTC Troubleshooting: P0122 (7-1)

DTC P0122 (7-1):

TP Sensor Circuit Low Voltage

1.	Turn the ignition switch ON(II).

Check the throttle position with the HDS or 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 terminals at the TP sensor and at the ECM/PCM.n

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

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

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

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