Diesel Data: Automotive Repair

P1121

DTCP1121:TP Sensor Signal Lower Than Expected

1. Turn the ignition switch ON (II).
2. Check the TP SENSOR in the DATA LIST with the HDS.

Is 12.1 % or higher indicated when the throttle is fully opened?

YES - Intermittent failure, system is OK at this time.

NO - Replace the throttle body.