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P129F Cadillac Code - Fuel Pump Driver Control Module Fuel Pump Speed Signal Incorrect

- Code Popularity: 1,352 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P129F 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 Fuel Pump and Level Sensor Assembly
  • Fuel Pump and Level Sensor Assembly harness is open or shorted
  • Fuel Pump and Level Sensor Assembly circuit poor electrical connection
  • Faulty Fuel Pump Driver Control Module
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How to Fix the DTC P129F Cadillac?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P129F Cadillac code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P129F Cadillac Description

The Fuel Pump Driver Control Module sends reports of the actual fuel pump speed to the Engine Control Module (ECM) as serial data every 10 ms. The ECM calculates the error between the commanded fuel pump speed and the fuel pump speed that was reported from the Fuel Pump Driver Control Module. A Diagnostic Trouble Code (DTC) will be set If the fuel pump speed is outside a calibrated threshold. The DTC will be set if the difference between the commanded fuel pump speed and actual fuel pump speed is outside a
the calibrated range for greater than 7 s.

OBDII Code P129F Cadillac - Fuel Pump Driver Control Module Fuel Pump Speed Signal Incorrect - AutoCodes.com
P129F Cadillac Code - Fuel Pump Driver Control Module Fuel Pump Speed Signal Incorrect

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Code P129F Cadillac comments

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