SECTION VIIC SERVICE PROGRAMMING SYSTEM
2005 Tech 2 User’s Guide VII - 66
Serial Data Link Tester (J-42236-A) for Corvettes
The J-42236-A serial data link tester (Figure VIIC-42) is used to perform SPS functions for the 1997 to
present Chevrolet Corvette. Refer to the service manual for detailed instructions on how to use this device
for programming.
NOTICE
Failure to follow proper programming procedures could result in PERMANENT DAMAGE to the PCM.
Procedure for Connecting the J-42236-A to the Vehicle PCM:
1. Ensure that the battery is fully charged, and that the scan tool cable connection at the data link
connector (DLC) is secure.
2. Turn off the ignition.
3. Remove the passenger side floor access panel. (Refer to service manual for details.)
4. Remove the shorting bars from both splice packs (star connectors). It may be necessary to remove
splice packs from the mounting positions.
5. Install the splice pack (star connector) cable #1 from the J-42236-A serial data link tester to the 12-pin
splice pack. This is the connector with eight or 10 wires.
6. Install the splice pack (star connector) cable #2 from the J-42236-A to the 12-pin splice pack. This is
the connector with four wires.
7. Select the splice pack (star connector) cable #1 on the J-42236-A toggle switch.
8. Select position B on the J-42236-A. Proceed with normal programming procedures.
Figure VIIC-42
Serial data link tester J-42236-A
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