OBD Guide

P15E8

External Engine Off Timer Engine Off Time Too Short in Correlation to Cooling-Down Of Engine Coolant

P15E8 is an OBD-II diagnostic trouble code meaning: External Engine Off Timer Engine Off Time Too Short in Correlation to Cooling-Down Of Engine Coolant. Common causes: frequent short trips with quick engine shutdown, coolant temperature sensor malfunction. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Check Engine light comes on
  • Increased engine temperature upon subsequent start-up
  • Reduced cooling system efficiency
  • Possible starting problems in hot weather

Causes

  • Frequent short trips with quick engine shutdown
  • Coolant temperature sensor malfunction
  • Cooling fan problems
  • Low coolant level
  • Thermostat malfunction

How to Fix

  1. Check the level and condition of the coolant
  2. Diagnose the operation of the coolant temperature sensor
  3. Check the operation of the cooling fan
  4. Check the functionality of the thermostat
  5. Increase the amount of time the engine runs before shutting down

Related codes

FAQ

What does the P15E8 code mean?

P15E8 is an OBD-II diagnostic trouble code that indicates: External Engine Off Timer Engine Off Time Too Short in Correlation to Cooling-Down Of Engine Coolant

What causes a P15E8 error code?

The most common causes of P15E8 include: Frequent short trips with quick engine shutdown; Coolant temperature sensor malfunction; Cooling fan problems; Low coolant level.

How do I fix a P15E8 diagnostic trouble code?

To fix P15E8: Check the level and condition of the coolant. Diagnose the operation of the coolant temperature sensor. Check the operation of the cooling fan. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P15E8?

Yes, but get it checked soon

How much does it cost to fix P15E8?

The estimated repair cost for P15E8 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat