Inputs

Scan Tool Data: Inputs:

PRNDL STATE
Range: Park/ Reverse/ Neutral/ Drive/ Third/ Second/ First/ Invalid

This data input refers to the PRNDL position data that is communicated to the cluster over the Class 2 serial data line by the PCM/VCM. The value of this parameter corresponds to the gear selected on the PRNDL display. The value of this parameter will be INVALID under the following conditions:
^ The data from the PCM/VCM is INVALID.
^ The data from the PCM/VCM is PARK but the cluster does not see ground on the park switch input (pin A12).
^ The data from the PCM/VCM is not PARK but the cluster sees ground on the park switch input (pin A12).
^ A Class 2 communication failure has occurred.

When the value of the parameter in INVALID, no gear will be shown as selected on the PRNDL display.

DIMMING
Range: Active/Inactive

This data refers to the dimming availability feature of the PRNDL and the odometer/trip odometer vacuum florescent displays.

ACTIVE is displayed when the park lamps are ON. When ACTIVE is displayed, you can use the thumbwheel dimming switch in order to dim the following displays:
^ The PRNDL
^ The odometer/trip odometer vacuum florescent

INACTIVE is displayed when the Park Lamps are OFF. When INACTIVE is displayed, you cannot dim the following displays:
^ The PRNDL
^ The odometer/trip odometer vacuum florescent

PARK SWITCH
Range: Open / Closed

This data input refer to the state of the gear shift PARK position switch.

OPEN is displayed when the gear shift is not in PARK.

CLOSED is displayed when the following conditions exist:
^ The gear shift is in the PARK position
^ The gear shift lever is at the normal rest position.

TRIP RESET SWITCH
Range: ACTIVE/INACTIVE

This data refers to the position of the Trip Odometer Reset Switch.

ACTIVE is displayed when the Trip Reset Switch is pushed in.

INACTIVE is displayed when the Trip Reset Switch is in the normal position.