Chrysler Voyager. Manual — part 430
6.0
GLOSSARY OF TERMS
ABS
antilock brake system
CAB
controller antilock brake
DC
direct current
DLC
data link connector
DRB
diagnostic read-out box
DTC
diagnostic test code
EVBP
electronic variable brake proportion-
ing
HCU
hydraulic control unit
ICU
integrated control unit
IPM
integrated power module
JBLK
junction block
PCI
programmable communication inter-
face
P/M
pump motor
WSS
wheel speed sensor
9
GENERAL INFORMATION
NOTES
10
7.0
DIAGNOSTIC INFORMATION AND
PROCEDURES
11
Symptom:
BUS SYSTEM COMMUNICATION FAILURE
When Monitored and Set Condition:
BUS SYSTEM COMMUNICATION FAILURE
When Monitored:
Ignition ON, continuously.
Set Condition:
When the CAB does not receive a message from the instrument cluster for
10 seconds.
POSSIBLE CAUSES
INTERMITTENT CONDITION
ELECTRO-MECHANICAL INSTRUMENT CLUSTER DTC PRESENT
BUS CIRCUIT OPEN
CAB - INTERNAL FAILURE
TEST
ACTION
APPLICABILITY
1
Turn the ignition on.
With the DRBIII
t, read DTCs.
With the DRBIII
t, read Freeze Frame information.
With the DRBIII
t, erase DTCs.
Turn the ignition off.
Turn the ignition on.
With the DRBIII
t, read DTCs.
Does the DRBIII
t display BUS SYSTEM COMMUNICATION FAILURE?
All
Yes
→ Go To 2
No
→ Go To 4
2
Turn the ignition on.
With the DRBIII
t, read EMIC DTCs.
Does the DRBIII
t display NO ABS MESSAGE RECEIVED?
All
Yes
→ Refer to symptom NO ABS MESSAGE RECEIVED in the BODY/
INSTRUMENT CLUSTER category.
Perform ABS VERIFICATION TEST - VER 1.
No
→ Go To 3
12
BRAKES (CAB)
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