Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 2313
B1604–RIGHT SOLAR SENSOR CIRCUIT LOW (ATC)
For a complete wiring diagram Refer to Section 8W.
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HVAC - ELECTRICAL DIAGNOSTICS
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•
When Monitored:
With the ignition on.
•
Set Condition:
If the Right Sunload Sensor input is out of range toward the low voltage threshold.
Possible Causes
(G139) SUN SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO GROUND
(G139) SUN SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO (G939) SUN SENSOR RETURN CIRCUIT
SUN SENSOR
A/C HEATER CONTROL
NOTE: This DTC must be active for the results of this test to be valid. Do not perform this test if this DTC
is stored. Refer to HVAC System Test (ATC) for stored DTC test procedures.
Diagnostic Test
1.
CHECK FOR DTC B1604–RIGHT SOLAR SENSOR CIRCUIT LOW WITH SUN SENSOR HARNESS
CONNECTOR DISCONNECTED
Turn the ignition off.
Disconnect the Sun Sensor harness connector.
Turn the ignition on.
With the scan tool, erase HVAC DTCs.
Turn the ignition off, wait 10 seconds, and turn the ignition on.
With the scan tool, read HVAC DTCs.
Does the scan tool display: B1604–RIGHT SOLAR SENSOR
CIRCUIT LOW?
Yes
>> Go To 2
No
>> Replace the Sun Sensor in accordance with the Service
Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING).
2.
CHECK (G139) SUN SENSOR NO. 2 SIGNAL CIRCUIT FOR A SHORT TO GROUND
Turn the ignition off.
Disconnect the A/C Heater Control C1 harness connector.
Measure the resistance of the (G139) Sun Sensor No. 2 Signal circuit
between ground and the A/C Heater Control C1 harness connector.
Is the resistance below 10k ohms?
Yes
>> Repair the (G139) Sun Sensor No. 2 Signal circuit for a
short to ground.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING).
No
>> Go To 3
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HVAC - ELECTRICAL DIAGNOSTICS
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3.
CHECK (G139) SUN SENSOR NO. 2 SIGNAL CIRCUIT FOR A SHORT TO (G939) SUN SENSOR RETURN
CIRCUIT
Measure the resistance between the (G139) Sun Sensor No. 2 Signal
circuit and the (G939) Sun Sensor Return circuit in the A/C Heater Con-
trol C1 harness connector.
Is the resistance below 10k ohms?
Yes
>> Repair the (G139) Sun Sensor No. 2 Signal circuit for a
short to the (G939) Sun Sensor Return circuit.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING).
No
>> Replace the A/C Heater Control in accordance with the Ser-
vice Information.
Perform BODY VERIFICATION TEST – VER 1. (Refer to 8
-
ELECTRICAL/ELECTRONIC
CONTROL
MODULES/
FRONT CONTROL MODULE - DIAGNOSIS AND TEST-
ING).
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HVAC - ELECTRICAL DIAGNOSTICS
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B1605–RIGHT SOLAR SENSOR CIRCUIT HIGH (ATC)
For a complete wiring diagram Refer to Section 8W.
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HVAC - ELECTRICAL DIAGNOSTICS
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