P0121

Tests 1 - 2:

Tests 3 - 8:

SYMPTOM
P0121 TPS VOLTAGE DOES NOT AGREE WITH MAP

WHEN MONITORED
With the engine running and no MAP sensor or TPS DTC.

SET CONDITION
Engine speed must be greater than 1600 rpm for all TPS testing

POSSIBLE CAUSES
- TPS harness or connectors intermittent defect
- TPS harness or connectors observable defect
- Throttle position sensor (B)
- Throttle position sensor (C)
- MAP sensor
- Powertrain control module
- Throttle position sensor (A)
- TPS 5-volt supply circuit open