Pinpoint Test A: The IPC Is Inoperative

NOTE: Failure to use the correct probe adapter(s) may damage the connector.

A1 RETRIEVE THE RECORDED DTCs FROM THE CONTINUOUS IPC SELF-TEST
- Check for recorded IPC DTCs from the continuous self-test.
- Is DTC U300A:62 recorded?
- Yes: VERIFY SJB fuse 29 (5A) is OK. If OK, GO to PINPOINT TEST BZ . If not OK, REFER to the OEM WIRING DIAGRAMS (EXCEPT HYBRID) or OEM WIRING DIAGRAMS (HYBRID) to identify the possible causes of the circuit short.
- No: GO to A2.
A2 CHECK THE IPC VOLTAGE SUPPLY
- Ignition OFF.
- Disconnect: IPC C220.
- For the non-hybrid, measure the voltage between the IPC C220-21, circuit SBP26 (YE/RD), harness side and ground.
  
  Fig 1: Measuring Voltage Between IPC C220-21, Circuit SBP26 (YE/RD) And Ground
  Courtesy of FORD MOTOR CO.
- For the hybrid, measure the voltage between the IPC C220-19, circuit SBP26 (YE/RD), harness side and ground.
  
  Fig 2: Measuring Voltage Between IPC C220-19, Circuit SBP26 (YE/RD) And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes: GO to A3.
- No: VERIFY SJB fuse 26 (10A) is OK. If OK, REPAIR the circuit for an open. If not OK, REFER to the OEM WIRING DIAGRAMS (EXCEPT HYBRID) or OEM WIRING DIAGRAMS (HYBRID) to identify the possible causes of the circuit short. TEST the system for normal operation.
A3 CHECK THE IPC GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- For the non-hybrid, measure the voltage between the IPC C220-21, circuit SBP26 (YE/RD), harness side and the IPC C220-5, circuit GD116 (BK/VT), harness side.
  
  Fig 3: Measuring Voltage Between IPC C220-21, Circuit SBP26 (YE/RD) And IPC C220-5, Circuit GD116 (BK/VT)
  Courtesy of FORD MOTOR CO.
- For the hybrid, measure the voltage between the IPC C220-19, circuit SBP26 (YE/RD), harness side and the IPC C220-9, circuit GD116 (BK/VT), harness side.
  
  Fig 4: Measuring Voltage Between IPC C220-19, Circuit SBP26 (YE/RD) And IPC C220-9, Circuit GD116 (BK/VT)
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
- Yes: GO to A4.
- No: REPAIR circuit GD116 (BK/VT) for an open. TEST the system for normal operation.
A4 CHECK FOR CORRECT IPC OPERATION
- Disconnect the IPC connector.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect the IPC connector and make sure it seats correctly.
- Operate the system and determine if the concern is still present.
- Is the concern still present?
- Yes: INSTALL a new IPC. REFER to INSTRUMENT PANEL CLUSTER (IPC) . TEST the system for normal operation.
- No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.