Engine-Codes - Generic - B1204

B1204 Code - Diagnosis Sensor Unit

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

|B1204 code possible causes

  • Faulty Diagnosis Sensor Unit
  • Diagnosis Sensor Unit harness is open or shorted
  • Diagnosis Sensor Unit circuit poor electrical connection

|How is the B1204 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 B1204 code

Labor: 1.0

The cost to diagnose the B1204 code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are B1204 code possible symptoms?

  • Air Bag Warning Light ON

|What is B1204 code meaning?

The Air Bag Diagnosis Sensor Unit detects the whole SRS electrical system and displays the malfunction either by illuminating or blinking the air bag warning lamp in the combination meter. The Air Bag Diagnosis Sensor Unit detects a shock that exceeds specified level and watches such systems as the driver and passenger air bag, side air bag, curtain air bag, pre-tensioner seat belts and Occupant Classification System (OCS) operate properly.
The Air Bag Diagnosis Sensor Unit contains the ā€œGā€ sensors for both frontal and side collisions and spare battery function in case of main battery damaged in a collision.

|Need more information with the B1204 code?

Need more information on how to fix the B1204 code?
Get Access to Factory Service Manuals

|B1204 code information for specific makes

|Need help with a B1204 code?

Get the B1204 code diagnosed by a professional: Find a repair shop in your area