Are the resistances greater than 10,000 ohms?
Yes | GO to E9 |
|---|---|
No | REPAIR the affected circuit. |
E9 CHECK THE GENERATOR CURRENT SENSOR FEEDBACK CIRCUIT FOR AN OPEN
Measure:
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C175B-53 | C1645-3 |
Is the resistance less than 3 ohms?
Yes | GO to E10 |
|---|---|
No | REPAIR the circuit. |
E10 CHECK THE GENERATOR CURRENT SENSOR CONNECTION
Ignition OFF. Disconnect Generator current sensor C1645. Inspect the generator current sensor connector for the following:
corrosion (install new connector or terminals – clean module pins) damaged or bent pins – install new terminals/pins pushed-out pins – install new pins as necessary
Connect and correctly seat the generator current sensor connector. Ignition ON. Using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs) in all modules. Using a diagnostic scan tool, perform the PCM self-test
Did the DTC return?
Yes | REPAIR as necessary or INSTALL a new generator current sensor. REFER to: Generator Current Sensor (414-01 Battery, Mounting and Cables, Removal and Installation). CLEAR the Diagnostic Trouble Codes (DTCs). REPEAT the self-test. If the DTC returns, GO to E11 |
|---|---|
No | The system is operating correctly at this time. The concern may have been caused by an intermittently loose or corroded connector. ADDRESS the root cause of any connector or pin issues. |
E11 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION
Ignition OFF. Disconnect and inspect all PCM connectors. Repair:
corrosion (install new connector or terminals – clean module pins) damaged or bent pins – install new terminals/pins pushed-out pins – install new pins as necessary
Reconnect the PCM 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 Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW the TSB instructions. If no Technical Service Bulletins (TSBs) address this concern, INSTALL a new PCM. REFER to: Powertrain Control Module (PCM) (303-14C Electronic Engine Controls - 5.0L 32V Ti-VCT/5.0L Ti-VCT V8 (308kW/418PS), Removal and Installation). CLEAR all Diagnostic Trouble Codes (DTCs) in all modules. |
|---|---|
No | The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues. |
DTC P0620, P065B
Refer to Wiring Diagrams Cell 12 for schematic and connector information.
Normal Operation and Fault Conditions
The PCM monitors the generator output via the generator monitor (GENMON) circuit. The PCM uses the generator command (GENCOM) circuit to command the generator to either increase or decrease output. If the GENCOM circuit (generator control circuit) or the "A" sense circuit are open or shorted to ground, the PCM will not be able to control the generator output. When the engine speed is greater than 2,000 rpm, the generator defaults to a steady voltage output of
13.5 volts and the PCM sends a request to the IPC to illuminate the charging system warning indicator. A GENCOM circuit fault can be confirmed by viewing the PCM PID generator command line fault (GENCMD_LF) (YES status indicator fault).
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.