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KM816010
Page 31 of 44
MAINTENANCE MANUAL
Kenworth SmartWheel Troubleshooting Guide
16
E. Headlight Flash Does Not Work
E1. Symptom: Headlights do not turn on.
E 1-2. Possible cause: Problem in headlight circuits.
E1-3. Possible cause: Bad dash switch.
Check
Result
What To Do Next
E1 -2A
Headlamp wiring/ connections in
engine area leading to headlights
(ckt L6LB).
Wires/connectors OK.
Go to
E1-2B
.
Wires frayed, broken, connectors
loose or unplugged.
Repair/replace wires or connectors.
E1 -2B
Continuity of ckt R5NC from dash
switch to electronics module (8-way
connector pin 6), and ckt R5HL from
dash switch to power distribution
box.
Circuit has continuity.
Go to
E1-3.
No continuity.
Trace circuits, check for broken wire
or bad connections.
Check
Result
What To Do Next
E1 -3A
Unplug headlamp dash switch.
Check continuity from switch termi-
nal R5HL to R5NC when switch is
turned on.
Ohmmeter reads continuity when
switch is turned on.
Go to
E1-4
.
No continuity when switch is on.
Replace switch.
Содержание SmartWheel KM816010
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