Dodge Sprinter 2006 - Page 169

TE S T ACTION AP PLICAB ILITY
2 Tur n th e ign it ion off.
Usin g a volt m et er, con n ect on e en d to t h e CAN cir cu it th a t pr eviou sly m ea su r ed
above 3.0 volt s, a n d t h e oth er end t o grou n d.
NOTE: Refer to the wiring diagrams in the service information to help
determine which modules are connected to the CAN Bus.
NOTE: Wait one minute, after turning the ignition off, before disconnecting
the module.
Discon n ect a modu le th a t is con n ect ed to th e CAN bu s.
Tur n th e ign it ion on .
Mon it or an d n ot e th e volt m eter r ea din g.
Repea t t h is pr ocedu r e un t il eit h er t h e volt a ge rea din g dr ops below 3.0 volt s or a ll
modu les th a t ar e conn ect ed to th e CAN Bu s ar e discon n ect ed a n d th e volta ge r ea din g
rem a in s a bove 3.0 volt s. Th en , pr oceed t o t h e conclu sion qu est ion .
Wh a t i s t h e ou tcom e?
All
> 3.0 v olt s w/a ll m odules discon n ect ed
Repa ir t h e CAN C Bu s (+) cir cu it or t h e CAN C Bus (-) cir cu it for
a sh or t to volt a ge.
Per for m BODY VERIFICATION TE ST - VE R 1.
< 3.0 v olt s a ft er discon n ect in g a m odu le
Repla ce t h e m odu le t h a t ca u sed t h e volt a ge r ea din g t o dr op aft er
discon n ect in g it .
Per for m BODY VERIFICATION TE ST - VE R 1.
3 Tur n th e ign it ion off.
Discon n ect t he In st r u m en t Clu st er ha r n ess con n ect or s.
Discon n ect t he n ega t ive ba tt er y cable.
Mea su r e th e resista n ce between gr ou n d a n d t h e CAN C Bu s (+) cir cuit .
Mea su r e th e resista n ce between gr ou n d a n d t h e CAN C Bu s (-) cir cu it.
Is t h e resista n ce below 50.0 ohm s on eit h er cir cuit ?
All
Ye s → Go To 4
No → Go To 5
4 Tur n th e ign it ion off.
Discon n ect t he n ega t ive ba tt er y cable.
Usin g a n oh m m et er, con n ect one en d t o t h e CAN Bu s cir cu it th a t pr eviou sly
mea su r ed below 50.0 ohm s a n d t h e oth er end t o grou n d.
NOTE: Refer to the wiring diagrams in the service information to help
determine which modules are connected to the CAN Bus.
Discon n ect a modu le th a t is con n ect ed to th e CAN Bu s.
Mon it or an d n ot e th e ohm m et er rea din g.
Repea t t h is pr ocedu r e u n t il eit h er t h e resist a n ce rea din g goes a bove 50.0 oh m s or a ll
modu les t h a t a r e con nect ed t o th e CAN Bu s a r e discon n ect ed a n d t h e r esist a n ce
rea din g r em a in s below 50.0 oh m s. Th en , pr oceed t o t h e conclu sion qu est ion .
Wh a t i s t h e ou tcom e?
All
< 50.0 ohm s w/a ll m odu les discon n ect ed
Repa ir t h e CAN C Bu s (+) cir cu it or t h e CAN C Bus (-) cir cu it for
a sh or t to gr ou n d.
Per for m BODY VERIFICATION TE ST - VE R 1.
>50.0 ohm s a ft er discon n ectin g a modu le
Repla ce th e modu le th a t ca used t h e r esist a nce r ea din g t o in crea se
aft er discon n ect in g it .
Per for m BODY VERIFICATION TE ST - VE R 1.
161
HEAT IN G & A/C
NO COMMUNICATION BUS (ACTIVE) — Co nt i n u ed