Dodge Durango (HB). Manual — part 629
B2223-(HFM) HANDS FREE PHONE INTERNAL
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
The Hands Free Module detects a fault during an internal diagnostic check.
Possible Causes
Hands Free Module
Diagnostic Test
1.
Replace the Hands Free Module if DTC is active
With the scan tool, read the active DTC’s.
Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per
cycle.
With the scan tool, read the active DTC’s.
Does the scan tool display this DTC as active?
Yes
>> Replace and program the Hands Free Module in accordance with the service information.
Perform BODY VERIFICATION TEST – VER 1.
No
>> If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness con-
nectors. Look for broken, bent, pushed out, or corroded terminals.
HB
NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS
8T - 51
B2230–RAM WRITE PERFORMANCE
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
The Hands Free Module detects a fault during an internal diagnostic check.
Possible Causes
Hands Free Module
Diagnostic Test
1.
Replace the Hands Free Module if DTC is active
With the scan tool, read the active DTC’s.
Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per
cycle.
With the scan tool, read the active DTC’s.
Does the scan tool display this DTC as active?
Yes
>> Replace and program the Hands Free Module in accordance with the service information.
Perform BODY VERIFICATION TEST – VER 1.
No
>> If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness con-
nectors. Look for broken, bent, pushed out, or corroded terminals.
8T - 52
NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS
HB
U0019–CAN B BUS
HB
NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS
8T - 53
U0019–CAN B BUS (CONTINUED)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Continuously
•
Set Condition:
Whenever the CAN B Bus (+) or CAN B Bus (-) circuit is open, shorted to voltage or shorted to ground.
Possible Causes
CAN B BUS DTC’s IN FRONT CONTROL MODULE
(D55) CAN B BUS (+) CIRCUIT OPEN
(D54) CAN B BUS (-) CIRCUIT OPEN
HANDS FREE MODULE
Diagnostic Test
1.
CHECK FOR ACTIVE DTCS
With the scan tool, read the active DTC’s.
Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per
cycle.
With the scan tool, read the active DTC’s.
Does the scan tool display this DTC as active?
Yes
>> Go To 2
No
>> If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness con-
nectors. Look for broken, bent, pushed out, or corroded terminals.
2.
CHECK FRONT CONTROL MODULE DTC’s
With the scan tool, read Front Control Module active DTC’s
Does the scan tool display any CAN B BUS DTC’s – ACTIVE?
Yes
>> (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - DIAGNOSIS AND TESTING)
No
>> Go To 3
8T - 54
NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS
HB
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