F 350 4WD Super Duty V8-6.4L DSL Turbo (2008)
Power Distribution Module: All Technical Service Bulletins
Electrical - Snowplow Lighting Issues
TSB 07-9-1
05/14/07
2008 F-SUPER DUTY - LIGHTING ON SNOW PLOW
EQUIPPED VEHICLES - BUILT BEFORE 04/18/2007
FORD:
2008 F-Super Duty
ISSUE
2008 F-Super Duty vehicles are equipped with a smart junction box (SJB) and it's function is to provide protection against excessive current loads,
typical of a short circuit, by shutting down circuit operation. The SJB strategy may interpret the switching between Ford headlamps and aftermarket
snowplow headlamps, and vice-versa, as a short-to-ground, causing the power feeding a headlamp circuit through the SJB to be turned off.
ACTION
Reprogram the SJB to the latest calibration using IDS release 48.9 patch 9 and higher or 49.1 patch 1 and higher. This new calibration is not included in
the VCM 2007.5 DVD. Calibration files may also be obtained at the website.
WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.
OPERATION
DESCRIPTION
TIME
070901A
2008 Super Duty:
0.3 Hr.
Reprogram The SJB (Do
Not Use With 12650D,
12651D, 12651D4)
DEALER CODING
CONDITION
BASIC PART NO.
CODE
15604
04
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