Dodge Sprinter 2006 - Page 368

Symptom:
NO COMMUNICATION WITH ECM
Wh e n Mo n i to re d a n d S e t Co n d it i o n :
NO COMMUNICATION WITH ECM
Wh en Mon it or ed: Ign it ion On - Con t inu ou sly
Set Con dition : Wh en t h e CAB fa ils t o receive all m essa ges fr om t h e E CM.
POSSIBLE CAUSES
NO COMMUNICATION WITH BUS
ENGINE CONTROL MODU LE DTC(S) P RE SE NT
ENGINE CONTROL MODU LE ’S P OWE R/GROUN D CIRCUIT(S) SH ORTE D OR OP E N
CAN C BUS (+)/CAN C BUS (-) CIRCUIT(S) OP E N TO EN GINE CONTROL MODULE
CAN C BUS (+)/CAN C BUS (-) CIRCUIT(S) OP E N TO CAB
ANTI-LOCK BRAKE CONTROLLE R
ENGINE CONTROL MODULE
TE S T ACTION AP PLICAB ILITY
1 Tur n th e ign it ion on .
Wit h th e DRBIII", r ea d CAB DTCs.
Does t h e DRBIII" display: NO COMMUNICATION WITH BUS?
All
Ye s → Refer t o t h e sym pt om list for t h e a ppr opr ia t e dia gn ost ic pr oce-
dure.
Per for m ABS VE RIF ICATION TE ST - VER 1.
No → Go To 2
2 Tur n th e ign it ion on .
Wit h th e DRBIII",readECMDTCs.
Does t h e DRBIII" display a ny DTCs?
All
Ye s → Refer t o P ower t r ain Dia gn ost ic in for m a t ion for th e rela t ed sym p-
tom (s).
Per for m ABS VE RIF ICATION TE ST - VER 1.
No → Go To 3
3 Tur n th e ign it ion on .
Wit h th e DRBIII", ch eck th e TCM, IC, a n d ATC modu le for t h e sa me or sim ila r No
Com m u n ica t ion wit h E n gin e Con t r ol Modu le DTC.
Does t h e DRBIII" displa y sa m e or sim ila r DTC in TCM, IC, & ATC m odu le?
All
Ye s → Go To 4
No → Go To 6
52
BRAK ES (CAB)