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The Handheld Diagnostic Tool (HDT) is designed to be used with the procedures in
Chapter 5 of this manual. This chapter describes the HDT and how to use it. Instru-
ment System troubleshooting information is found in Chapter 5.
The following subjects are covered:
Care and Cleaning
Description
Reading Engine ECU Gauge Data
Reading Private Bus Gauge Data
Viewing the Configuration Data
Programming and Verifying Ports 5A and 5B
Programming the Alarm Point for the Main
Transmission Temperature Gauge Warning LED
HDT Spare Parts
The HDT is a precision instrument and is designed for years of trouble-free operation
in a normal vehicle repair environment. It will operate between –10° C and +50° C
and is spill-resistant. Always return the tool to its carrying case when not in use.
To clean the HDT, us only a soft cloth and a mild, non-abrasive soap. Do not use
gasoline, alcohol, or solvents because they will damage the instrument and void
its warranty.
Section 6.1 on page 6-1.
Section 6.2 on page 6-2.
Section 6.3 on page 6-3.
Section 6.4 on page 6-6.
Section 6.5 on page 6-8.
Section 6.6 on page 6-10.
Section 6.7 on page 6-13.
Section 6.8 on page 6-16.
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