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P135A Cadillac Code - Ignition Coil Supply Voltage Circuit Bank 1

- Code Popularity: 2,603 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P135A 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.
  • Blown Ignition Coil Fuse
  • Ignition Coil Fuse harness is open or shorted
  • Ignition Coil Fuse circuit poor electrical connection
  • Faulty Engine Control Module (ECM)
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How to Fix the DTC P135A 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 P135A 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 P135A Cadillac Description

The ignition system uses an individual ignition coil for each cylinder. The Engine Control Module (ECM) monitors the ignition voltage from the fuse to the individual coils. The Diagnostic Trouble Code (DTC) will be set if the ECM detects less than 2.5 V on the ignition coil supply voltage circuit.

OBDII Code P135A Cadillac - Ignition Coil Supply Voltage Circuit Bank 1 - AutoCodes.com
P135A Cadillac Code - Ignition Coil Supply Voltage Circuit Bank 1

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Code P135A Cadillac comments

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