Pinpoint Test R : B1087:83, B1087:86 Or B1087:88

R1 CHECK THE OPERATION OF THE LEFT REAR AND RIGHT REAR POWER WINDOWS FROM THE MASTER WINDOW CONTROL SWITCH

Ignition ON.

Operate the left rear and right rear power windows from the master window control switch.

Do the power windows operate on both sides?

Yes	The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

No	If a DTC is set in the DDM, GO to R2. If a DTC is set in the PDM, GO to R3

R2 ISOLATE THE MASTER WINDOW CONTROL SWITCH
- Ignition OFF.
- Disconnect Master Window Control Switch C535 .
- Ignition ON.
- Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
- Wait 10 seconds.
- NOTE: DTC U2013:01 or U2013:87 may set and should be ignored.
  
  Using a diagnostic scan tool, repeat the DDM self-test.
Is DTC B1087:83, B1087:86 or B1087:88 retrieved again?

Yes GO to R3

No INSTALL a new master window control switch.

R3 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect DDM C501A and Driver Rear Door Module (DRDM) C728 (if DTC sets in the DDM).

Disconnect PDM C652A and Passenger Rear Door Module (PRDM) C832 (if DTC sets in the PDM).

Ignition ON.

Measure:

DDM

Positive Lead	Measurement / Action	Negative Lead
C501A-8	Courtesy of FORD MOTOR COMPANY	Ground

PDM

Positive Lead	Measurement / Action	Negative Lead
C652A-8	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

GO to R4

R4 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) FOR A SHORT TO GROUND

Ignition OFF.

Measure:

DDM

Positive Lead	Measurement / Action	Negative Lead
C501A-8	Courtesy of FORD MOTOR COMPANY	Ground

PDM

Positive Lead	Measurement / Action	Negative Lead
C652A-8	Courtesy of FORD MOTOR COMPANY	Ground

Is the resistance greater than 10, 000 ohms?

Yes

GO to R5

No	REPAIR the circuit.

R5 CHECK THE LIN (LOCAL INTERCONNECT NETWORK) FOR AN OPEN

Measure:

DDM

Positive Lead	Measurement / Action	Negative Lead
C501A-8	Courtesy of FORD MOTOR COMPANY	C728-21

PDM

Positive Lead	Measurement / Action	Negative Lead
C652A-8	Courtesy of FORD MOTOR COMPANY	C832-21

Is the resistance less than 3 ohms?

Yes	INSTALL a new rear door module for the module in question. CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test. If the concern still exists, GO to R6

No	REPAIR the circuit.

R6 CHECK FOR CORRECT FRONT DOOR MODULE OPERATION

Disconnect and inspect all the DDM or PDM connectors.

Repair:
- corrosion (install new connector or terminal - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary

Reconnect the DDM or PDM 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) addresses this concern, INSTALL a new front door module for the module in question. Refer to: Front Door Module (FDM) .

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.