Engine-Codes - Cadillac - P1187 Cadillac

P1187 Cadillac Code - Engine Oil Temperature Sensor Circuit Low Voltage

- Code Popularity: 2,732 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 2/3
Table of contents
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What are the Possible Causes of the DTC P1187 Cadillac?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Engine Oil Temperature Sensor
  • Engine Oil Temperature Sensor harness is open or shorted
  • Engine Oil Temperature Sensor circuit poor electrical connection
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How to Fix the DTC P1187 Cadillac?

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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P1187 Cadillac code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the P1187 Cadillac Code Mean?

The Powertrain Control Module (PCM) monitors the Engine Oil Temperature Sensor. The PCM sets the OBDII code when the Engine Oil Temperature Sensor is not to factory specifications.

P1187 Cadillac Code - Engine Oil Temperature Sensor Circuit Low Voltage

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