Dodge Sprinter 2006 - Page 522

Symptom List:
P 1681-ACM CIRCU IT FAU LT
P 1681-ACM CIRCU IT SHORT TO VOLTAGE
Te s t N o t e : Al l s y m p t o m s l i s t e d a b o v e a r e d i a g n o s e d u s i n g t h e s a m e t e s t s .
Th e title fo r th e te s ts w ill be P 1681-ACM CIRCU IT FAU LT.
POSSIBLE CAUSES
AIRBAG CONTROL MODULE
INTERMITTENT CONDITION
ACM SIGN AL CIRCUIT SH ORTE D TO VOLTAGE
ENGINE CONTROL MODULE
TE S T ACTION AP PLICAB ILITY
1 NOTE: If the ECM detects and stores a DTC, the ECM also stores the
e n gi n e /ve h ic le o p e ra ti n g c o n d i tio n s u n d e r w h ic h th e D TC w a s s e t. S o m e o f
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
Wit h t h e DRB, ch eck t h e Air ba g Modu le for pr oper com m un ica tion a n d DTCs. If
th er e ar e a n y ACM DTCs, r epa ir t h em pr ior t o con t in u in g t h is t est.
Tur n th e ign it ion on .
Wit h th e DRB, er a se E CM DTCs.
Star t t he engine.
Wit h th e DRB, r ea d E CM DTCs.
Did t h is DTC set a ga in ?
All
Ye s → Go To 2
No → Go To 4
2 Tur n th e ign it ion off.
Discon n ect t he E CM ha r n ess con n ect or s.
Rem ove t h e E ngin e Con t r ol Rela y.
Con n ect a ju mper wir e bet ween ca vit y 30 a n d ca vit y 87 of t h e En gin e Con t r ol Rela y
conn ect or.
Tur n th e ign it ion on .
Mea su r e th e volt a ge of th e ACM Sign a l cir cu it .
Is t h e volt a ge below 1.0 volt ?
All
Ye s → Repla ce th e En gin e Con t r ol Module in a ccorda n ce wit h t he
Ser vice In for m a t ion .
Per for m ROAD TE ST VE RIF ICATION - VER-2.
No → Go To 3
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DRI V EABI LI T Y - DI ESEL