AutoCodes – Jaguar – P1642 Jaguar

P1642 Jaguar Code - CAN Circuit Malfunction

Quick Answer

P1642 Jaguar indicates CAN Circuit Malfunction. Common causes include CAN short circuit fault, Control module failure, Check for additional flagged DTC(s) to locate control module source. 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: P1642 Jaguar indicates CAN Circuit Malfunction.
Common causes: Common causes include CAN short circuit fault, Control module failure, Check for additional flagged DTC(s) to locate control module source.
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 13,965

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 Sep 04, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1642 Jaguar Description

OBDII Code P1642 Jaguar - CAN Circuit Malfunction - AutoCodes.com — P1642 Jaguar Code - CAN Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P1642 Jaguar?

CAN short circuit fault
Control module failure
Check for additional flagged DTC(s) to locate control module source

How to Fix the DTC P1642 Jaguar?

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 P1642 Jaguar 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.

Need more information about the P1642 Jaguar code?

Need more information on how to fix the P1642 Jaguar code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1642 Jaguar code diagnosed by a professional: Find a repair shop in your area

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 P1642 Jaguar Code

1. What are the common symptoms of OBDII code P1642 Jaguar (CAN Circuit Malfunction)?

- Common symptoms include illuminated check engine light, vehicle stalling or hesitation, and problems with the transmission shifting.

2. What are the possible causes of OBDII code P1642 Jaguar?

- Potential causes include damaged wiring or connectors in the Controller Area Network (CAN) circuit, faulty CAN communication module, or issues with the powertrain control module.

3. How can I diagnose OBDII code P1642 in my Jaguar?

- Diagnose the code by using an OBDII scanner to retrieve the specific code, inspecting the CAN circuit wiring for damage, checking the connectors for corrosion, and testing the communication module for functionality.

4. Can I still drive my Jaguar with OBDII code P1642 present?

- It is not recommended to drive the vehicle with this code present, as it may lead to further damage or unsafe driving conditions. It is best to address the issue promptly.

5. How can I clear OBDII code P1642 Jaguar from my vehicle's computer?

- Clear the code by using an OBDII scanner to reset the codes after addressing the underlying issue causing the CAN circuit malfunction.

6. Are there any DIY repair tips for fixing OBDII code P1642 in my Jaguar?

- DIY repair tips include checking and repairing damaged wiring, ensuring proper connections in the CAN circuit, and consulting the vehicle's service manual for specific troubleshooting steps.

7. Will OBDII code P1642 Jaguar affect my vehicle's performance?

- Yes, this code can impact the performance of your vehicle by causing transmission issues, engine stalling, or other drivability problems.

8. How much does it typically cost to repair OBDII code P1642 Jaguar at a dealership or mechanic?

- Repair costs can vary depending on the specific issue causing the code, but expect to pay anywhere from $100 to $500 for diagnosis and repairs at a dealership or mechanic.

9. Can a faulty battery or alternator cause OBDII code P1642 in a Jaguar?

- Yes, a faulty battery or alternator can lead to voltage fluctuations that may trigger the CAN circuit malfunction code. It is recommended to check the battery and charging system as part of the diagnostic process.

10. Is it necessary to visit a Jaguar dealership for OBDII code P1642 diagnosis and repair?

- While you can visit a Jaguar dealership for diagnosis and repair, independent automotive shops with experience in Jaguar vehicles can also effectively diagnose and repair OBDII code P1642.