Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 310
2.
CHECK PARK ASSIST SENSOR NO. 7 FOR A SHORT TO GROUND
Shift the transmission into park.
With the scan tool, erase DTCs.
Turn the ignition off.
Disconnect Park Assist Sensor No. 7.
Turn the ignition on.
Shift the transmission into reverse.
With the scan tool, read Park Assist Module DTCs.
Does the scan tool display: B122C-PTS SENSOR 7 CIRCUIT
LOW?
Yes
>> Go To 3
No
>> Replace Park Assist Sensor No. 7 in accordance with the
service information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1).
3.
CHECK THE (D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT FOR A SHORT TO (X750) PARK
ASSIST SENSOR GROUND CIRCUIT
Turn the ignition off.
Disconnect the Park Assist Module harness connector.
Measure the resistance between the (D700) Park Assist Sensor No. 7
Signal circuit and the (X750) Park Assist Sensor Ground circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (D700) Park Assist Sensor No. 7 Signal 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 4
8B - 6
CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
LX
4.
CHECK THE (D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT FOR A SHORT TO (Z171) PARK
ASSIST DISPLAY GROUND CIRCUIT
Measure the resistance between the (D700) Park Assist Sensor No. 7
Signal circuit and the (Z171) Park Assist Display Ground circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (D700) Park Assist Sensor No. 7 Signal 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 5
5.
CHECK THE (D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT FOR A SHORT TO (Z914) PARK
ASSIST MODULE GROUND CIRCUIT
Measure the resistance between the (D700) Park Assist Sensor No. 7
Signal circuit and the (Z914) Park Assist Module Ground circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (D700) Park Assist Sensor No. 7 Signal 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 6
LX
CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
8B - 7
6.
CHECK THE (D700) PARK ASSIST SENSOR NO. 7 SIGNAL CIRCUIT FOR A SHORT TO GROUND
Measure the resistance between ground and the (D700) Park Assist
Sensor No. 7 Signal circuit.
Is the resistance below 10K ohms?
Yes
>> Repair the (D700) Park Assist Sensor No. 7 Signal circuit
for a short to ground.
Perform BODY VERIFICATION TEST - VER 1. (Refer to
BODY VERIFICATION TEST - VER 1).
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).
8B - 8
CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
LX
B122E-PTS SENSOR 7 RING TIME TOO SHORT
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on, transmission in reverse or neutral (Late build vehicles will disable the Park Assist System
in Neutral).
•
Set Condition:
Sensor ring down time exceeds limit (greater than 1450 µsecs).
Possible Causes
PARK ASSIST SENSOR NO. 7
Diagnostic Test
1.
CHECK FOR ACTIVE DTC: B122E-PTS SENSOR 7 RING TIME TOO SHORT
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: B122E-PTS SENSOR 7 RING TIME TOO SHORT 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.
REPLACE PARK ASSIST SENSOR NO. 7
View Repair
Repair
Replace Park Assist Sensor No. 7 in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to BODY VERIFICATION TEST - VER 1).
LX
CHIME/BUZZER - ELECTRICAL DIAGNOSTICS
8B - 9
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