AutoCodes – Chrysler – B1970 Chrysler

B1970 Chrysler Code - Power Liftgate Close Direction Ratchet Primary Switch Performance

Quick Answer

The Primary Ratchet (Ajar) Switch must remain closed when the liftgate is fully open or between fully open and closed positions. Common causes include Binding Power Liftgate, Faulty Power Liftgate Latch, Power Liftgate Latch harness is open or shorted. 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
B1970 Chrysler indicates Power Liftgate Close Direction Ratchet Primary Switch Performance.
Common causes
Common causes include Binding Power Liftgate, Faulty Power Liftgate Latch, Power Liftgate Latch harness is open or shorted.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 751
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 31, 2019
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Code B1970 Chrysler Description

The Primary Ratchet (Ajar) Switch must remain closed when the liftgate is fully open or between fully open and closed positions. The switch will open when the liftgate is fully closed and latched. This switch indicates when the latch is in the primary position. It is open when in primary and closed when out of the primary.
OBDII Code B1970 Chrysler - Power Liftgate Close Direction Ratchet Primary Switch Performance - AutoCodes.com
B1970 Chrysler Code - Power Liftgate Close Direction Ratchet Primary Switch Performance

What are the Possible Causes of the DTC B1970 Chrysler?

  • Binding Power Liftgate
  • Faulty Power Liftgate Latch
  • Power Liftgate Latch harness is open or shorted
  • Power Liftgate Latch circuit poor electrical connection
  • Faulty Power Liftgate Module

How to Fix the DTC B1970 Chrysler?

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 B1970 Chrysler 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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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1970 Chrysler Code

1. What does the OBDII code B1970 mean on a Chrysler vehicle?

The code B1970 indicates an issue with the Power Liftgate Close Direction Ratchet Primary Switch's performance, which controls the power liftgate's closing mechanism.

2. What are common symptoms of the B1970 code?

Symptoms include the liftgate failing to close properly, intermittent or unresponsive operation, or unusual noises during liftgate operation.

3. What causes the B1970 code to appear?

The code can be triggered by a malfunctioning ratchet primary switch, wiring issues, corrosion, or misalignment in the liftgate mechanism.

4. Can I still use my liftgate when the B1970 code is active?

In most cases, the liftgate may remain functional but could operate inconsistently or fail to close securely, posing a safety risk.

5. How can I diagnose the B1970 code?

Use an OBDII scanner to confirm the code, then visually inspect the liftgate components, wiring, and ratchet switch for damage or corrosion.

6. Is the B1970 code related to electrical issues?

Yes, it can be caused by electrical problems such as faulty wiring, poor connections, or a failing ratchet switch sensor.

7. How do you fix the B1970 code on a Chrysler vehicle?

Repairs may include replacing the ratchet primary switch, repairing damaged wiring, cleaning connections, or recalibrating the liftgate system.

8. Can I reset the B1970 code without repairing the issue?

While the code can be cleared temporarily, it will likely return unless the underlying problem is addressed.

9. How much does it cost to fix the B1970 code?

The cost depends on the extent of the repairs, but replacing the ratchet switch typically ranges from $100 to $300, excluding labor.

10. Can a faulty ratchet primary switch damage other liftgate components?

Yes, prolonged issues with the switch can strain the liftgate motor and other mechanical parts, potentially leading to additional failures.

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