154 KENR6933
Troubleshooting Section
Test Step 5. Bypass the Application
Harness
Batteries give off flammable fumes which can ex-
plode.
To avoid injury or death, do not strike a ma tch,
cause a spark, or smoke in the vicinity of a battery.
NOTICE
Do not connect
the bypass harness to the battery un-
til all of the in-line fuses have been removed from the
Battery+ line. If the fuses are not removed before con-
nection to the
battery, a spark may result.
Note: The bypass harness is only for test
application
s. This bypass harness must be removed
before the application is released to the customer.
Thebypassharnesscanbeusedinorderto
determine i
f the cause of the intermittent fault is an
interruption in battery power to the ECM or to the
keyswitch circuit.
g01245124
Illustration 56
Schematic for the bypass application harness
A. Turn the keyswitch to the OFF position.
B. Disconnect the P1 connector from the ECM
connector.
C. Connect a bypass harness to the ECM.
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