Pinpoint Test H : The Defrost System Does Not Shut Off Automatically

Refer to HEATED WINDOW for schematic and connector information.
Normal Operation and Fault Conditions

REFER to: Glass, Frames and Mechanisms - Vehicles With: One-Touch Open Driver Window - System Operation and Component Description .

Possible Sources
- Wiring, terminals or connectors
- BJB

H1 CHECK THE REAR WINDOW DEFROST OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect: BJB C1035A.

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C1035A-2	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit.

No

GO to H2

H2 CHECK THE BJB (BATTERY JUNCTION BOX) OPERATION

Ignition OFF.

Inspect the BJB connectors.

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

Reconnect the BJB connectors and all other previously disconnected defrost system 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, SSM or FSA. 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 BJB.

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