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AutoCodes - Generic - U300C

U300C Code - Ignition Input Off/On/Start

- Code Popularity: 3,283 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By - Updated Jun 18, 2020
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|Code U300C 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

|How do I Fix the Code U300C?

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 connector's pins.

Does your Car have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code U300C?

Labor: 1.0

The cost of diagnosing the U300C 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.

|What are Code U300C Possible Symptoms?

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

|Code U300C 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 - Ignition Input Off/On/Start -
U300C Code - Ignition Input Off/On/Start

|Need More Information on the U300C Code?

Need more information on how to fix the U300C code? Get Access to Factory Service Manuals

|Information for Specific Makes

|Need Help with the U300C Code?

Get the U300C code diagnosed by a professional: Find a repair shop in your area

|Code U300C comments

Help us improve Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the U300C code? Have you replaced any parts?
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