Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1927
P0562-BATTERY VOLTAGE LOW - ESM (COLUMN)
For a complete wiring diagram Refer to Section 8W
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AUTOMATIC TRANSMISSION NAG1 - SHIFTER DIAGNOSTICS
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•
When Monitored:
Continuously with the ignition on.
•
Set Condition:
When monitored battery voltage drops below 6.0 volts.
Possible Causes
VEHICLE CHARGING SYSTEM
(F902) IGNITION UNLOCK RUN START CIRCUIT
(Z910) GROUND CIRCUIT
ELECTRONIC SHIFT MODULE (ESM)
Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 21 -
TRANSMISSION/TRANSAXLE/AUTOMATIC - NAG1 - STANDARD PROCEDURE)
Theory of Operation
The Electronic Shift Module (ESM) monitors ignition voltage. The DTC will set if the monitored battery voltage drops
below 6.0 volts and a temporary limp in will be activated. If the voltage rises above 9.0 volts, normal operations is
resumed.
Diagnostic Test
1.
CHECK FOR ENGINE CHARGING SYSTEM DTCS
With the scan tool, read Engine DTCs.
Are there any Engine Charging System DTCs present?
Yes
>> Refer to Engine category and perform the appropriate symptom(s). (Refer to 9 - ENGINE - DIAGNOSIS
AND TESTING)
Perform NAG1 TRANSMISSION VERIFICATION TEST. (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - NAG1 - STANDARD PROCEDURE)
No
>> Go To 2
2.
CHECK THE (F902) IGNITION UNLOCK RUN START CIRCUIT
Turn the ignition off to the lock position.
Disconnect the ESM harness connector.
Ignition on, engine not running.
Using a 12-volt test light connected to ground, check the (F902) Ignition
Unlock Run Start circuit.
NOTE: The test light must illuminate brightly. Compare the bright-
ness to that of a direct connection to the battery.
Does the test light illuminate brightly?
Yes
>> Go To 3
No
>> Repair the (F902) Ignition Unlock Run Start circuit for high
resistance.
Perform NAG1 TRANSMISSION VERIFICATION TEST.
(Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC -
NAG1 - STANDARD PROCEDURE)
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AUTOMATIC TRANSMISSION NAG1 - SHIFTER DIAGNOSTICS
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3.
CHECK THE (Z910) GROUND CIRCUIT
Turn the ignition off to the lock position.
Using a 12-volt test light connected to 12-volts, check the (Z910)
Ground circuit in the Shift Lever Assembly harness connector.
NOTE: The test light must illuminate brightly. Compare the bright-
ness to that of a direct connection to the battery.
Does the test light illuminate brightly?
Yes
>> Go To 4
No
>> Repair the (Z910) Ground circuit for high resistance.
Perform NAG1 TRANSMISSION VERIFICATION TEST.
(Refer to 21 - TRANSMISSION/TRANSAXLE/AUTOMATIC -
NAG1 - STANDARD PROCEDURE)
4.
ELECTRONIC SHIFT MODULE
Reconnect all disconnected harness connectors.
With the scan tool, erase ESM DTCs.
Start the engine and raise the engine speed to 2000 RPM.
With the scan tool, read ESM DTCs.
Did the DTC P0562-BATTERY VOLTAGE LOW DTC reset?
Yes
>> Using the schematics as a guide, check the Electronic Shift Module (ESM) terminals for corrosion, dam-
age, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are
found, replace the ESM (Steering Column) per the Service Information.
Perform NAG1 TRANSMISSION VERIFICATION TEST. (Refer to 21 - TRANSMISSION/TRANSAXLE/
AUTOMATIC - NAG1 - STANDARD PROCEDURE)
No
>> Test Complete.
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P0563-BATTERY VOLTAGE HIGH - ESM (COLUMN SHIFT)
For a complete wiring diagramRefer to Section 8W
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AUTOMATIC TRANSMISSION NAG1 - SHIFTER DIAGNOSTICS
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