OBDII Code List

U300C MERCURY - Ignition Input Off/On/Start

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3   
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U300C MERCURY Possible Causes

  • Ignition Input Off/On/Start (ISP-R) harness is open or shorted
  • Ignition Input Off/On/Start (ISP-R) circuit poor electrical connection

First diagnose U300C MERCURY 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 terminals.

Cost of diagnosing the U300C MERCURY code

    Labor: 1.0

    The cost of diagnosing the U300C MERCURY code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

U300C MERCURY Possible Symptoms

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

U300c Mercury Description

The Powertrain Control Module (PCM) monitors the ignition key state. The U300C code sets when the key state is not available.
OBDII Code U300c Mercury - Ignition Input Off/On/Start -

U300C MERCURY More Information

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U300C MERCURY Comments

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