Majestic L6-40L (1990) - Instrument Panel, Gauges, and Warning Indicators
Driver/Vehicle Information Display: Description and Operation
VEHICLE CONDITION MONITOR (VCM)
INTRODUCTION
The Vehicle Condition Monitor information is displayed on the Odometer/VCM/Trip Computer display panel located below the tachometer and
speedometer.
The condition of the vehicle is constantly monitored for operating faults which, if found, are highlighted by the illumination of certain warning lights.
By pressing the VCM button located on the trip computer panel the relevant fault message will be displayed.
In the event that more than one fault has occurred. the display panel will cycle between messages, pausing for two seconds at each one.
To enable the trip computer information to be displayed, the button marked 'CLEAR' provides a means of extinguishing any VCM message present on
the written display.
Pressing the VCM button when a fault exists will override any trip computer messages and re-display the relevant VCM fault symbol.
VEHICLE CONDITION MONITOR
FAULT CODES (CHECK ENGINE)
In the event of an engine management fault occurring the 'Check Engine' warning light will be illuminated. Additional information can be displayed by
pressing the Vehicle Condition Monitor (VCM) button located on the trip computer panel.
When a fault has been signalled the likely area responsible for the malfunction can be indicated when the vehicle is stationary.
Switch off the ignition, wait at least 5 seconds, then turn the ignition switch to position 'II' (do not start the engine). Press the VCM button, this action
will cause the VCM/trip computer display to illuminate the applicable fault code.
All fault codes are, when triggered, stored in the ECU memory. In addition, the 'check engine' lamp is illuminated, and will remain illuminated (when
the ignition is switched on) until the fault is rectified and the ECU memory cleared by JDS or by grounding the relevant ECU pin (see notes for
exceptions).
NOTES:
1 USA Specification: Fault codes 26 and 44 will not remain illuminated at each ignition on/off cycle. This is to prevent the check engine lamp
becoming a nuisance if the vehicle runs out of fuel. Codes 26 and 44 will remain on only until the next ignition on/off cycle.
If the VCM function is used (while the lamp is illuminated), the code will be displayed. After the next ignition on/off cycle. the code will no
longer be available to the driver. However, the code is still in the ECU memory and can be accessed by dealer personnel.
2 Non USA Catalyst Specification: Only the following fault codes will cause the check engine lamp to illuminate - 11, 12, 14, 16, 17, 18, 19, 68,
23, 26 and 44. The lamp will not remain illuminated after the next ignition on/off cycle
3 Non Catalyst Specification: As Non USA Catalyst Specification except that codes 23, 26 and 44 are not active.
