P1122

Description
TP SENSOR CIRCUIT INTERMITTENT LOW VOLTAGE

Throttle Position (TP) sensor measures amount of throttle
opening. PCM uses TP sensor information for fuel delivery
calculations. TP sensor readings during acceleration are much higher
than those during deceleration or idle. DTC P1121 sets if PCM senses
TP sensor voltage intermittently less than 0.15 volt.

Symptoms
You likely won't notice any drivability problems.

Causes

• TP signal voltage is intermittently less than 0.16 volt.

Solutions

• If DTC P0122 is also set, diagnose DTC P0122 before
  proceeding.
• Check for faulty connections or damaged harness.
• Test TPS
• Replace TPS