P0121 Throttle position sensor circuit range/performance problem
Check Conditions
Ignition switch "ON" position.
After 2 or more seconds after the engine:
Engine 6G72: Gauge-switch fully closed throttle position is set to "ON" (ON), the voltage sensor 2 or above for 2 seconds
Engine 6G74: sensor signal voltage is 2 V or higher for 2 seconds when cranking the engine room of 1000 r/ min or less and engine load of 60% or less;
Judgement Criteria
The signal voltage throttle position sensor 0.2 V or lower for 2 seconds.
Check Conditions
Signal voltage throttle position sensor 4.6 V or more for 2 seconds or more after 2 seconds after starting the engine, the engine speed the engine below 3000 r / min and the load on the engine does not exceed 30%.
Signal voltage throttle position sensor 0.8 or lower for 2 seconds 2 seconds after the engine is started, if the engine speed is above 2000 engine rev / min and engine load, more than 60%.
- TPS failed or incorrectly adjusted.
- Open or shorted TPS (main) circuit, or loose connector.
- PCM failed.
Check Conditions
Ignition switch "ON" position.
After 2 or more seconds after the engine:
Engine 6G72: Gauge-switch fully closed throttle position is set to "ON" (ON), the voltage sensor 2 or above for 2 seconds
Engine 6G74: sensor signal voltage is 2 V or higher for 2 seconds when cranking the engine room of 1000 r/ min or less and engine load of 60% or less;
Judgement Criteria
The signal voltage throttle position sensor 0.2 V or lower for 2 seconds.
Check Conditions
Signal voltage throttle position sensor 4.6 V or more for 2 seconds or more after 2 seconds after starting the engine, the engine speed the engine below 3000 r / min and the load on the engine does not exceed 30%.
Signal voltage throttle position sensor 0.8 or lower for 2 seconds 2 seconds after the engine is started, if the engine speed is above 2000 engine rev / min and engine load, more than 60%.
- TPS failed or incorrectly adjusted.
- Open or shorted TPS (main) circuit, or loose connector.
- PCM failed.