Dodge Sprinter 2006 - Page 334

TE S T ACTION AP PLICAB ILITY
2 NOTE: This DTC will set if the Brake Switch, the Brake Lamp Switch, or
both sw itche s are inoperative. It will be necessary to verify the functional-
ity of each sw itch.
NOTE: If the Brake Switch and the Brake Lamp Switch are inoperative, it
will be necessary to diagnose BOTH circuits.
Tur n th e ign it ion off.
Tur n th e ign it ion on .
Wit h t h e DRBIII" in In pu t s/Ou tpu t s, mon it or th e Br a ke Switch st a t e while pr essin g
and releasing the brake pedal.
Does t h e DRBIII" displa y ch an ge fr om CLOSED t o OP E N a s t he br a ke peda l is
pressed a nd r eleased?
All
Ye s → Go To 3
No → Go To 4
3 Tur n th e ign it ion off.
Visu a lly in spect t h e rela t ed wir in g ha r n ess.
Look for an y ch a fed, pier ced, pin ch ed, or pa r t ia lly br oken wir es.
Look for br oken , ben t , pu sh ed ou t , or cor r oded t er m in a ls.
Wer e an y pr oblem s fou n d?
All
Ye s → Repa ir a s n ecessa ry.
Per for m ABS VE RIF ICATION TE ST - VER 1.
No → Test Com plet e.
4 Tur n th e ign it ion off.
Discon n ect t he C1 Br a ke Swit ch h a r ness con n ect or.
Tur n th e ign it ion on .
Wit h th e DRBIII" in Inpu t s/Ou t pu t s, m on it or t h e Br a ke Swit ch st a te.
Con n ect a jum per wir e bet ween th e F u sed Ign it ion Swit ch Ou t pu t cir cu it an d Br a ke
Swit ch Ou t pu t cir cu it in th e C1 Br a ke Swit ch ha r n ess con n ect or.
Does t h e DRBIII" displa y a cha n ge from OP EN to CLOSE D?
All
Ye s → Repla ce th e Bra k e Swit ch in a ccor da nce wit h t h e Ser vice In for-
ma t ion.
Per for m ABS VE RIF ICATION TE ST - VER 1.
No → Go To 6
5 Tur n th e ign it ion off.
Discon n ect t he C2 Br a ke La m p Swit ch ha r n ess con n ector.
Tur n th e ign it ion on .
Wit h th e DRBIII" in Inpu t s/Ou t pu t s, m on it or t h e Br a ke La m p Swit ch sta t e.
Con n ect a jum per wir e bet ween th e F u sed Ign it ion Swit ch Ou t pu t cir cu it an d Br a ke
La m p Swit ch Out pu t cir cu it in th e C2 Bra k e La m p Swit ch ha r n ess con n ect or.
Does t h e DRBIII" displa y a cha n ge from OP EN to CLOSE D?
All
Ye s → Repla ce th e Br a ke La m p Swit ch in a ccor da n ce wit h t h e Service
In for m a t ion .
Per for m ABS VE RIF ICATION TE ST - VER 1.
No → Go To 6
18
BRAK ES (CAB)
BRAKE SWITCH CIRCUIT — Co nt in ued