Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 318
B212A-PTS DISPLAY SUPPLY VOLTAGE LOW
For a complete wiring diagram Refer to Section 8W.
8B - 38
CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
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•
When Monitored:
With the ignition in Run/Start, PRNDL in R, N, or D; vehicle speed less than 40 mph (Late build vehicles will
disable the Park Assist System in neutral).
•
Set Condition:
Park Assist Sensor Display voltage less than 8.0 volts.
Possible Causes
(X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT SHORT TO GROUND
(X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT SHORT TO (Z171) PARK ASSIST DISPLAY GROUND
CIRCUIT
(X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT SHORT TO (Z914) PARK ASSIST MODULE GROUND
CIRCUIT
(X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT SHORT TO (X750) PARK ASSIST SENSOR GROUND
CIRCUIT
PARK ASSIST DISPLAY
PARK ASSIST MODULE
Diagnostic Test
1.
CHECK FOR ACTIVE DTC: B212A-PTS DISPLAY SUPPLY VOLTAGE LOW
Turn the ignition on.
Apply the vehicle park brake.
Shift the transmission into Reverse.
With the scan tool, record and erase Park Assist Module DTCs.
Wait 30 seconds.
With the scan tool, read Park Assist Module DTCs.
Is DTC: B212A-PTS DISPLAY SUPPLY VOLTAGE LOW active?
Yes
>> Go To 2
No
>> The condition that caused this code to set is not present at this time. Check for an intermittent condition
by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also
inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated termi-
nals.
Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1).
2.
CHECK PARK ASSIST MODULE FOR AN INTERNAL SHORT TO GROUND
Turn the ignition off.
Disconnect the Park Assist Module harness connector.
Measure the resistance between ground and the (X777) Park Assist
Display Supply circuit.
Is the resistance below 10K ohms?
Yes
>> Go To 3
No
>> Replace the Park Assist Module in accordance with the ser-
vice information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1).
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CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
8B - 39
3.
CHECK THE (X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT FOR A SHORT TO THE (Z171) PARK
ASSIST DISPLAY GROUND CIRCUIT
Disconnect the Park Assist Display harness connector.
Measure the resistance between the (X777) Park Assist Display Supply
circuit and the (Z171) Park Assist Display Ground circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (X777) Park Assist Display Supply circuit for a
short to the (Z171) Park Assist Display Ground circuit.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1).
No
>> Go To 4
4.
CHECK THE (X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT FOR A SHORT TO THE (Z914) PARK
ASSIST MODULE GROUND CIRCUIT
Measure the resistance between the (X777) Park Assist Display Supply
circuit and the (Z914) Park Assist Module Ground circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (X777) Park Assist Display Supply circuit for a
short to the (Z914) Park Assist Module Ground circuit.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1).
No
>> Go To 5
5.
CHECK THE (X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT FOR A SHORT TO THE (X750) PARK
ASSIST SENSOR GROUND CIRCUIT
Measure the resistance between the (X777) Park Assist Display Supply
circuit and the (X750) Park Assist Sensor Ground circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (X777) Park Assist Display Supply circuit for a
short to the (X750) Park Assist Sensor Ground circuit.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1).
No
>> Go To 6
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CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
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6.
CHECK THE (X777) PARK ASSIST DISPLAY SUPPLY CIRCUIT FOR A SHORT TO GROUND
Measure the resistance between ground and the (X777) Park Assist
Display Supply circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (X777) Park Assist Display Supply circuit for a
short to ground.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1).
No
>> Replace the Park Assist Display in accordance with the ser-
vice information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1).
LX
CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
8B - 41
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