What are the codes for the throttle position sensor?
Please try again later. Learn how to troubleshoot the following OBD II Codes: P0120, P0121, P0122, P0123 and P0124 which are related to the Throttle Position Sensor Circuit. The video also contains detailed instructions about how to test the TPS Sensor ( Throttle Position Sensor), using either an ohm meter, voltmeter or a hand held OBD II Scanner.
Where to find OBD1 code on Lexus SC300?
Transmission must be in Neutral position. All accessories must be turned Off. On pre-OBD II models, turn ignition to On, then use a jumper wire to connect terminals TE1 and El of the data link connector, located under the left hand side of the instrument panel. Codes are indicated by the number of flashes of the check engine warning light.
What does p0121 mean in engine control module?
What Does P0121 Mean? Your TPS “A” Circuit has an expected output voltage range, as does your TPS “B” Circuit (if so equipped). When code P0121 occurs, it means that your Engine Control Module (ECM) recognized that your throttle position “A” circuit’s expected output voltage has either gone above or below the sensor’s expected range.
What do you need to know about Lexus troublecodes?
If light remains on, the self-diagnosis system has detected a fault in the system. Battery voltage must be 11 volts or more. Throttle valve must be fully closed. Transmission must be in Neutral position.
What causes a p0120 TPS a circuit malfunction?
Potential causes of the P0120 code include: Sticking throttle return spring MAP or TPS connector corrosion Misrouted harness causing chafing If you have access to a scan tool, with KOEO (Key on engine off) observe the TPS voltage.
How does the TPS work on a Nissan p0120?
The TPS sends the throttle position information back to the PCM on this signal wire. When the throttle is closed the signal is near .45 volts. At WOT (Wide Open Throttle) the TPS signal voltage will approach a full 5 volts.
What should voltage be on TPS with throttle closed?
With throttle closed, voltage should be about .45 volts. It should gradually sweep upwards to approximately 4.5 to 5 volts as you depress the throttle. Sometimes only a scope can capture an intermittent glitch in the TPS signal voltage.
Transmission must be in Neutral position. All accessories must be turned Off. On pre-OBD II models, turn ignition to On, then use a jumper wire to connect terminals TE1 and El of the data link connector, located under the left hand side of the instrument panel. Codes are indicated by the number of flashes of the check engine warning light.