Engine-Codes
 
OBDII Code List
 
U300C MERCURY

U300C MERCURY - Ignition Input Off/On/Start

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What does this mean?

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

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 widely across the country, and even within the same city. 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 Meaning

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 - Engine-Codes.com

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