AutoCodes – Jeep – U1700 Jeep

U1700 Jeep Code - Body Control Module Signal Invalid

Quick Answer

The Body Control Module (BCM) is an electronic control unit that manages a wide range of vehicle body functions, including exterior and interior lighting, power windows, central door locking, tailgate operation, wipers, washers, fuel-level and temperature readings, immobilizer functions, brake-related sensors, vehicle configuration settings, and hazard-light control. Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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: U1700 Jeep indicates Body Control Module Signal Invalid.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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.

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Code Popularity 83

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 Nov 10, 2025

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code U1700 Jeep Description

The Body Control Module (BCM) is an electronic control unit that manages a wide range of vehicle body functions, including exterior and interior lighting, power windows, central door locking, tailgate operation, wipers, washers, fuel-level and temperature readings, immobilizer functions, brake-related sensors, vehicle configuration settings, and hazard-light control. It also serves as a communication gateway between different in-vehicle networks such as high-speed and medium-speed CAN and LIN systems. Internally, the BCM includes a power board with fuses, relays, and power connections, and a logic board with the microprocessor. It is mounted under the dashboard to the left of the steering wheel, behind a removable cover for fuse access.

OBDII Code U1700 Jeep - Body Control Module Signal Invalid - AutoCodes.com — U1700 Jeep Code - Body Control Module Signal Invalid

What does this mean?

What are the Possible Causes of the DTC U1700 Jeep?

Faulty Body Control Module (BCM)
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection

How to Fix the DTC U1700 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 U1700 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.