AutoCodes – Cadillac – U1359 Cadillac

U1359 Cadillac Code - Lost Communication With Transmission Range Indicator

Quick Answer

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. Common causes include Faulty Control Module Setting the Diagnostic Trouble Code (DTC), Control Module harness is open or shorted, 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: U1359 Cadillac indicates Lost Communication With Transmission Range Indicator.
Common causes: Common causes include Faulty Control Module Setting the Diagnostic Trouble Code (DTC), Control Module harness is open or shorted, 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 430

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 May 16, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1359 Cadillac Description

The Local Interconnect Network (LIN) Bus consists of a single wire with a transmission rate of 10.417 Kbit/s. The serial data is transmitted over a LIN circuit between a master control module and other LIN devices within a particular subsystem. If serial data communication is lost between any of the LIN devices on the LIN bus network, the master control module will set a no communication code against the non-communicating LIN device. The Diagnostic Trouble Code (DTC) sets when a supervised periodic message that includes the transmitter device availability has not been received.

OBDII Code U1359 Cadillac - Lost Communication With Transmission Range Indicator - AutoCodes.com — U1359 Cadillac Code - Lost Communication With Transmission Range Indicator

What does this mean?

What are the Possible Causes of the DTC U1359 Cadillac?

Faulty Control Module Setting the Diagnostic Trouble Code (DTC)
Control Module harness is open or shorted
Control Module circuit poor electrical connection

How to Fix the DTC U1359 Cadillac?

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 U1359 Cadillac 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 U1359 Cadillac Code

1. What does the OBDII code U1359 mean on a Cadillac?

U1359 indicates a "Lost Communication With Transmission Range Indicator," meaning the vehicle's modules are not receiving proper data from the transmission range sensor.

2. What are the common symptoms of code U1359?

Symptoms may include difficulty shifting gears, the transmission staying in a single gear, the vehicle going into limp mode, or warning lights such as the check engine or transmission light.

3. What causes the U1359 code to appear on a Cadillac?

Common causes include a faulty transmission range sensor, damaged wiring or connectors, a malfunctioning transmission control module (TCM), or communication issues between modules.

4. Can a loose connection trigger the U1359 code?

Yes, loose or corroded connections in the wiring harness between the transmission range sensor and the TCM can lead to communication loss and trigger this code.

5. How do I diagnose the U1359 code on my Cadillac?

Start by scanning for additional codes, inspecting the wiring and connectors for damage, testing the transmission range sensor, and verifying module communication using a diagnostic tool.

6. Is it safe to drive with the U1359 code active?

Driving with this code is not recommended, as it may cause transmission performance issues, potentially leading to unsafe driving conditions or further damage.

7. How can I fix the U1359 code on my Cadillac?

Repairs may include replacing or repairing damaged wiring, cleaning corroded connections, replacing the transmission range sensor, or reprogramming the TCM if necessary.

8. Can a software update fix the U1359 code?

In some cases, a software update to the transmission control module or powertrain control module may resolve communication issues.

9. How much does it cost to repair the U1359 code?

The cost varies depending on the issue, ranging from $50 for minor wiring repairs to $500 or more if the transmission range sensor or TCM needs replacement.

10. Can a low battery cause the U1359 code?

Yes, a weak or failing battery can cause communication issues between modules, potentially triggering the U1359 code.