DTC P3498-94: Cylinder 1 Deactivation Performance - Unexpected operation: Action
- Vehicle Conditions to Enable DTC Logging Strategy
- Engine running in catalyst heating, after a minimum soak period of 2 hours
- Prioritized Checks to Perform
- Using the Jaguar Land Rover approved diagnostic equipment, check for PCM power supply and/or charging system related DTCs and refer to the relevant DTC index
- Using the Jaguar Land Rover approved diagnostic equipment check powertrain control module for continuously variable valve lift related DTCs and refer to the relevant DTC index
- Using the Jaguar Land Rover approved diagnostic equipment check and install latest relevant level of software to the powertrain control module
- Clear DTCs and retest. If the fault persists, install a new powertrain control module, only when diagnosed as failed. Using the Jaguar Land Rover approved diagnostic equipment, configure the powertrain control module as a new module
- The powertrain control module now has a liquid cooling system incorporated. The following care points must be followed during removal, installation of component and disconnection, connection of electrical harness connectors
- Make sure PCM side connectors are always dry
- Make sure mating PCM harness connectors are always dry
- Make sure PCM is always handled with connector facing upwards to avoid any accidental exposure of the connector to the coolant from the cooling pipe of the PCM to avoid damage to the PCM
- Make sure that the connector from the PCM (harness side) is disconnected and connected only in a dry and clean environment