DJ - Testing Notes

NOTE: You should enter this Pinpoint Test only when you have been directed here from Quick Test.


REMEMBER

To prevent the replacement of good components and spending needless time on diagnostics, verify proper engine RPM sensor installation and complete electrical connection.

This Pinpoint Test is intended to diagnose only the following:

- Harness circuits: RPMS(+) and RPMS(-)

- Engine RPM sensor (17B384)

- Processor assembly


DESCRIPTION

The engine RPM sensor picks up signals from the injection fuel pump timing gear on engine and supplies engine rpm input to the processor. The processor uses this information in E4OD transmission control.