AutoCodes – Jeep – B1972 Jeep

B1972 Jeep Code - Power Liftgate Latch Release 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 Liftgate Ajar Switch Sense, Liftgate Ajar Switch Sense 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: B1972 Jeep indicates Power Liftgate Latch Release Ratchet Primary Switch Performance.
Common causes: Common causes include Binding Power Liftgate, Faulty Liftgate Ajar Switch Sense, Liftgate Ajar Switch Sense 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.

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Code Popularity 1,891

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 31, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1972 Jeep 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 B1972 Jeep - Power Liftgate Latch Release Ratchet Primary Switch Performance - AutoCodes.com — B1972 Jeep Code - Power Liftgate Latch Release Ratchet Primary Switch Performance

What does this mean?

What are the Possible Causes of the DTC B1972 Jeep?

Binding Power Liftgate
Faulty Liftgate Ajar Switch Sense
Liftgate Ajar Switch Sense harness is open or shorted
Liftgate Ajar Switch Sense circuit poor electrical connection
Faulty Power Liftgate Latch
Faulty Power Liftgate Module

How to Fix the DTC B1972 Jeep?

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 B1972 Jeep 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 B1972 Jeep Code

What does the OBDII code B1972 mean for my Jeep?

B1972 indicates a performance issue with the power liftgate latch release ratchet primary switch, which may affect the operation of the power liftgate.

What are common symptoms of the B1972 code?

Common symptoms include the power liftgate not opening or closing properly, intermittent operation of the liftgate, or the liftgate not responding to the switch.

What could cause the B1972 code to trigger?

Causes can include a faulty latch release switch, wiring issues, a malfunctioning liftgate module, or mechanical problems with the liftgate itself.

How can I diagnose the issue related to code B1972?

Begin by inspecting the switch and wiring for damage or corrosion. Use a multimeter to test the switch's functionality and check for proper voltage at the liftgate module.

What repairs can be made to resolve the B1972 code?

Repair options may include replacing the faulty liftgate latch release switch, repairing any damaged wiring, or replacing the liftgate module if necessary.

Can I drive my Jeep with the B1972 code?

While it is possible to drive your Jeep, the power liftgate may not function properly, which could be inconvenient or pose safety risks when loading or unloading items.

How do I clear the B1972 code after repairs?

You can clear the code using an OBDII scanner or by disconnecting the vehicle's battery for a short period, but it's essential to ensure the underlying issue is resolved first.

Is the B1972 code a common issue in all Jeep models?

The B1972 code is more commonly associated with specific Jeep models equipped with a power liftgate system; it's not necessarily a widespread issue across all models.

Will ignoring the B1972 code lead to further problems?

Yes, ignoring the code might lead to additional electrical issues or mechanical failures in the liftgate system, potentially increasing repair costs over time.