What does code P1642 mean?

Q: What does code P1642 mean?

CAN Link Circuit. P1642 on a Jaguar indicates that the Controller Area Network (CAN) link circuit has a communication fault, meaning one or more control modules cannot exchange data reliably over the vehicle's high-speed data bus. The engine control module (ECM) or body control module (BCM) detects missing or corrupted messages from another module on the CAN network and stores this code as a result.

DTC codes / Jaguar codes / P1642

P1642 · JaguarCAN Link Circuit

P1642 on a Jaguar indicates that the Controller Area Network (CAN) link circuit has a communication fault, meaning one or more control modules cannot exchange data reliably over the vehicle's high-speed data bus. The engine control module (ECM) or body control module (BCM) detects missing or corrupted messages from another module on the CAN network and stores this code as a result.

SystemPowertrain

Code typeJaguar specific

SeverityMedium

Fix difficultyProfessional

AreaComputer and output circuits

Guidance is general and written for Jaguar vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.