Pinpoint Test A: DTC P0562:00

Refer to Wiring Diagrams TRANSMISSION CONTROLS - 8F35 for schematic and connector information.

Normal Operation and Fault Conditions

The GSM requires an operating voltage between 9 and 16 volts. The GSM receives this voltage from the BCM and has a single ground circuit. Excessive resistance or an open in one or more of these circuits, a discharged battery or a inoperative charging system results in the GSM setting a DTC.

DTC Fault Trigger Conditions

DTC	Description	Fault Trigger Condition
GSM P0562:00	System Voltage Low: No Sub Type Information	This DTC sets in continuous memory if the voltage supplied to the GSM falls below 9 volts for more than 3 seconds.

Possible Sources

Fuses
Wiring, terminals or connectors
GSM

A1 RECHECK THE GSM (GEAR SHIFT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, clear the GSMDTCs.
- Ignition OFF.
- Ignition ON.
- Using a diagnostic scan tool, carry out the GSM self-test.
Is DTC P0562 still present?

Yes GO to A2

No The system is operating correctly at this time. The DTC may have set due to a previous low battery voltage condition.

A2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS) IN THE PCM (POWERTRAIN CONTROL MODULE)
- Using a diagnostic scan tool, retrieve all CMDTCs.
Are any charging system Diagnostic Trouble Codes (DTCs) present in the PCM?

Yes DIAGNOSE the vehicle charging concern.

No GO to A3

A3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE
- Carry out the Battery Condition Test. REFER to: Battery
Did the battery pass the condition test?

Yes GO to A4

No INSTALL a new battery. REFER to: Battery

A4 CHECK THE GSM (GEAR SHIFT MODULE) VOLTAGE SUPPLY

Ignition OFF.

Disconnect GSM C2503.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2503-1	Courtesy of FORD MOTOR COMPANY	Ground
C2503-15	Courtesy of FORD MOTOR COMPANY	Ground

Is the voltage within 1 volt of the recorded battery voltage?

Yes

GO to A5

No	VERIFY BCM fuse 12 (7.5A) is OK. If OK, REPAIR the affected circuit for high resistance or an open. If not OK, REFER to the OEM ELECTRICAL WIRING DIAGRAM INTRODUCTION to identify the cause of the circuit short.

A5 CHECK THE GSM (GEAR SHIFT MODULE) GROUND CIRCUIT FOR AN OPEN

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2503-18	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance less than 3 ohms?

Yes

GO to A6

No	Verify ground G202 is clean and torqued to specification. If OK, REPAIR the circuit.

A6 VERIFY ALL WIRING CONNECTIONS
- Disconnect and inspect GSM C2503 and related in-line electrical connectors.
- Using a good light source, inspect all disconnected electrical connectors for the following:
  - corrosion - install new connector or terminal and clean the module pins
  - damaged or bent pins - install new terminals or pins
  - pushed-out pins - install new pins as necessary
  - spread terminals - install new terminals as necessary
Are the connectors free of corrosion, damaged pins, bent pins, pushed-out pins and spread terminals?

Yes GO to A7

No REPAIR the connector, terminals as necessary.

A7 CHECK FOR CORRECT GSM (GEAR SHIFT MODULE) OPERATION

Connect GSM C2503 and all related in-line electrical connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes

CHECK OASIS for any applicable service articles: TSB, GSB (general service bulletin), SSM (special service message) or FSA (Field Service Action). If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GSM. REFER to: Gear Shift Module (GSM)

No	The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.