AutoCodes - Cadillac - P1120 CADILLAC

P1120 CADILLAC Code - Throttle Position Sensor 1 Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 2/3
Table of contents

|P1120 CADILLAC code possible causes

  • Faulty Throttle Position Sensor
  • Throttle Position Sensor harness is open or shorted
  • Throttle Position Sensor circuit poor electrical connection
  • Throttle Position Sensor not properly adjusted

|How do I fix the P1120 CADILLAC code?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|Cost of diagnosing the P1120 CADILLAC code

Labor: 1.0

The cost of diagnosing the P1120 CADILLAC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|When is the P1120 CADILLAC code detected?

When the Powertrain Control Module (PCM) senses a signal voltage higher than the normal operating range of the sensor, the P1120 will set.

|What are P1120 CADILLAC code possible symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|P1120 CADILLAC code description

The Throttle Position (TP) sensor is a potentiometer. The TP sensor provides a voltage signal that changes relative to throttle blade angle. This signal voltage is one of the most important inputs used by the Powertrain Control Module (PCM). The TP sensor has a 5.0 volt reference, a ground and a signal circuit.
TP sensor Signal voltage should be about 0.6 volt at idle. The TP sensor voltage should increase to above 4.0 volts at wide open throttle (WOT).
OBDII Code P1120 Cadillac - Throttle Position Sensor 1 Circuit - AutoCodes.com

|Need more information with the P1120 CADILLAC code?

Need more information on how to fix the P1120 CADILLAC code? Get Access to Factory Service Manuals

|Need help with a P1120 CADILLAC code?

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|P1120 CADILLAC code comments

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Repair Importance Level: 3
 
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