Western MVP PLUS Series User Manual

Lit. No. 27366, Rev. 01 February 15, 2008
78
TROUBLESHOOTING GUIDE
HARNESS TESTS
Vehicle Lighting (#2) and Plug-In Harnesses (#3 & #4) w/Green Isolation Module
Common (–) System
Common (+) System
Test Location
Harness #3 Harness #4 Harness #3 Harness #4 Harness #2
input to module input to module output to vehicle output to vehicle output to plow
Function
12V neg 12V neg 12V neg 12V neg 12V neg
Left Low Beam A J – – E K – – B J
Left High Beam B J – – D K – – A J
Right Low Beam – – A J – – E K E K
Right High Beam – – B J – – D K D K
DRL Lamp F K J
Left Turn Signal Lamp G – – – – – – – G *
Right Turn Signal Lamp – – G – – – – – F *
Park Lamp H – – – – – – – H *
Test Location
Harness #3 Harness #4 Harness #3 Harness #4 Harness #2
input to module input to module output to vehicle output to vehicle output to plow
Function
12V neg 12V neg 12V neg 12V neg 12V neg
Left Low Beam J A – – K E – – J B
Left High Beam J B – – K D – – J A
Right Low Beam – – J A – – K E K E
Right High Beam – – J B – – K D K D
DRL Lamp F – – – – – – – K J
Left Turn Signal Lamp G – – – – – – – G *
Right Turn Signal Lamp – – G – – – – – F *
Park Lamp H – – – – – – – H *
* Ground is completed through the vehicle circuit on NIGHTHAWK™ headlamps. On old-style headlamps, ground is completed by the black/orange wire at the motor NEGATIVE (–) post.

Western MVP PLUS Series Specifications

General

Brand	Western
Model	MVP PLUS Series
Category	Snow Blower
Language	English