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P1242 – Jaguar DTC

Jaguar DTC P1242 – Sensor power supply – high input

DTC P1242 meaning on Jaguar

DTC P1242 on a Jaguar indicates a high input in the sensor power supply circuit. This fault code is triggered when the power supply voltage to a sensor is detected to be higher than the specified range.

Jaguar DTC P1242 symptoms

Symptoms of DTC P1242 on a Jaguar may include:

  • Check Engine Light (CEL) illuminated on the dashboard
  • Reduced engine performance
  • Potential drivability issues

Jaguar DTC P1242 causes

Common causes of DTC P1242 on a Jaguar include:

  • Faulty sensor
  • Short circuit in the sensor power supply circuit
  • Issues with the sensor power supply wiring

Jaguar DTC P1242 seriousness

DTC P1242 should be addressed promptly as it can affect the performance and drivability of the vehicle. Ignoring this fault code may lead to further damage to the vehicle’s components.

How to diagnose DTC P1242 on Jaguar

To diagnose DTC P1242 on a Jaguar, follow these steps:

  1. Use a diagnostic scanner to retrieve the fault code
  2. Inspect the sensor power supply circuit for any visible damage or loose connections
  3. Test the sensor and its wiring for proper voltage and continuity

How to fix DTC P1242 on Jaguar

To fix DTC P1242 on a Jaguar, you can:

  1. Replace the faulty sensor
  2. Repair any short circuits in the sensor power supply circuit
  3. Repair or replace damaged wiring in the sensor power supply circuit

How to erase DTC P1242 on Jaguar

To erase DTC P1242 on a Jaguar, you can:

  1. Use a diagnostic scanner to clear the fault code
  2. After fixing the underlying issue, clear the code again to ensure it does not reappear

Recommended tools for Jaguar diagnostics

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Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

← All Jaguar Diagnostic Trouble Codes

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