Engine-Codes - Mazda - B1178 MAZDA

B1178 MAZDA - Trunk Lid Latch Switch Circuit Malfunction

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

B1178 MAZDA Possible Causes

  • Faulty Trunk Lid Latch Switch
  • Trunk Lid Latch Switch harness is open or shorted
  • Trunk Lid Latch Switch circuit poor electrical connection
  • Faulty Rear Body Control Module (RBCM)

How is the B1178 MAZDA 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 B1178 MAZDA code

Labor: 1.0

The cost to diagnose the B1178 MAZDA 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.

Possible Symptoms

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

B1178 MAZDA Meaning

The Rear Body Control Module (RBCM) monitors the Trunk Lid Latch Switch Circuit. The RBCM sets the OBDII code when the RBCM detects short to ground in Trunk Lid Latch Switch Circuit with the trunk closed

More Information

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