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Home >> Jeep >> 1994 >> Grand Cherokee 4WD L6-242 4.0L VIN S MFI >> Repair and Diagnosis >> Transmission and Drivetrain >> Transmission Control Systems >> Testing and Inspection >> Component Tests and General Diagnostics >> 42RE >> Scan Tool Testing >> DRBII Test Functions
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DRBII Test Functions

DRB-III TEST FUNCTIONS
In order to perform the tests in this section, you must operate the DRB-III to reach the 42RE MENU level within the diagnostic testing program. At the 42RE MENU, you can read DRB-III faults and perform diagnostic test functions.

The 42RE MENU provides a choice of several different categories of test functions as described below.


- System Tests - This function enables the Technician to test the functioning of the shift lever and solenoids.

- Read Faults - This function enables the Technician to read faults.

- State Display - This function enables the Technician to read the states or values of a variety of sensors, inputs/outputs, and components.

- Actuator Tests - This test function option is not available for 42RE transmission system diagnostics.


NOTES:

42RE transmission testing functions include a system test and state displays.

The data necessary for transmission testing is provided through a data stream issued from the Transmission Control Module (TCM). As with engine testing, the key must be "ON" for the TCM to transmit data.
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