Engine-Codes - Toyota - B1503 TOYOTA

B1503 TOYOTA - Exhaust Heat Management Warning Detected

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

B1503 TOYOTA Possible Causes

  • Faulty Engine Coolant Temperature Sensor
  • Engine Coolant Temperature Sensor harness is open or shorted
  • Engine Coolant Temperature Sensor circuit poor electrical connection
  • Faulty Combination Meter Assembly

How is the B1503 TOYOTA code repair?

Start by checking 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.

What is the cost to diagnose the B1503 TOYOTA code

Labor: 1.0

The cost to diagnose the B1503 TOYOTA 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.
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Possible Symptoms

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

B1503 TOYOTA Meaning

This Diagnostic Trouble Code (DTC) is stored when the Combination Meter Assembly (meter circuit plate) detects a malfunction in the Engine Coolant Temperature Sensor that is connected to the Combination Meter Assembly (meter circuit plate) via a direct line.

More Information

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