B1202 Code - Diagnosis Sensor Unit
Quick Answer
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. Common causes include Faulty Diagnosis Sensor Unit, Diagnosis Sensor Unit harness is open or shorted, Diagnosis Sensor Unit circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B1202 indicates Diagnosis Sensor Unit.
- Common causes
- Common causes include Faulty Diagnosis Sensor Unit, Diagnosis Sensor Unit harness is open or shorted, Diagnosis Sensor Unit circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B1202 Description
The Air Bag Diagnosis Sensor Unit contains the “G†sensors for both frontal and side collisions and spare battery function in case of main battery damaged in a collision.
What are the Possible Causes of the DTC B1202?
- Faulty Diagnosis Sensor Unit
- Diagnosis Sensor Unit harness is open or shorted
- Diagnosis Sensor Unit circuit poor electrical connection
How to Fix the DTC B1202?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1202 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- B1202 Chrysler — Airbag Warning Indicator Circuit Open
- B1202 Dodge — Airbag Warning Indicator Circuit Open
- B1202 Ford — Restraint System Passenger Enable Indicator General Electrical Failure
- B1202 Infiniti — Diagnosis Sensor Unit
- B1202 Jeep — Airbag Warning Indicator Circuit Open
- B1202 Lincoln — Restraint System Passenger Enable Indicator General Electrical Failure
- B1202 Mercury — Restraint System Passenger Enable Indicator General Electrical Failure
- B1202 Nissan — Diagnosis Sensor Unit
- B1202 RAM — Airbag Warning Indicator Circuit Open
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B1202 Code
1. What is OBDII code B1202 related to Diagnosis Sensor Unit?
The B1202 code indicates a problem with the Diagnosis Sensor Unit in the vehicle's system.
2. What are common symptoms of OBDII code B1202?
Common symptoms of code B1202 may include issues with the airbag system, such as the airbag warning light staying on or not functioning properly.
3. What are possible causes of OBDII code B1202?
Possible causes of code B1202 can include a faulty Diagnosis Sensor Unit, damaged wiring, or a malfunction in the airbag system.
4. How can I diagnose OBDII code B1202?
To diagnose code B1202, it is recommended to use a diagnostic scanner to read the code, check the wiring connections, and inspect the Diagnosis Sensor Unit for any visible damage or defects.
5. Can I still drive my vehicle with OBDII code B1202?
It is not recommended to drive your vehicle with an unresolved B1202 code, as it may affect the proper functioning of the airbag system, compromising your safety in the event of a collision.
6. How can I repair OBDII code B1202?
Repairing code B1202 may involve replacing the Diagnosis Sensor Unit, repairing damaged wiring, or addressing any other underlying issues in the airbag system as needed.
7. Is it safe to reset the OBDII code B1202 without fixing the underlying issue?
Resetting the B1202 code without addressing the underlying problem is not recommended, as it may lead to recurring issues with the airbag system and compromise safety.
8. How much does it cost to repair OBDII code B1202?
The cost of repairing code B1202 can vary depending on the extent of the issue, the cost of parts needed, and labor charges from a mechanic or dealership.
9. Can a DIY enthusiast fix OBDII code B1202 at home?
While some enthusiasts may have the skills to address code B1202 at home, it is recommended to consult a professional mechanic for proper diagnosis and repair to ensure the safety of the airbag system.
10. How often does OBDII code B1202 occur in vehicles?
OBDII code B1202 related to the Diagnosis Sensor Unit is not as common as other codes, but it can still occur in vehicles with airbag system issues that need attention.
Discuss the causes and fixes for B1202 OBDII Code
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