DTC B316B, B317A, B318A, or B319A
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DTC B316B, B317A, B318A, or B319A
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DTC B316B 00
Driver Window Switch
DTC B316B 02
Driver Window Switch Short to Ground
DTC B316B 39
Driver Window Switch Internal Electronic Failure
DTC B317A 02
Right Front/Passenger Window Switch Short to Ground
DTC B318A 02
Left Rear Window Switch Short to Ground
DTC B319A 02
Right Rear Window Switch Short to Ground
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Diagnostic Fault Information
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Circuit
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Short to Ground
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Open/High Resistance
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Short to Voltage
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Signal Performance
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Driver Window Motor Control
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B316B 02
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1
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1
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-
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Passenger Window Motor Control
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B317A 02
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2
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2
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-
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Left Rear Window Motor Control
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B318A 02
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3
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3
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-
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Right Rear Window Motor Control
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B319A 02
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4
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4
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-
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1. Driver Window Malfunction
2. Passenger Window Malfunction
3. Left Rear Window Malfunction
4. Right Rear Window Malfunction
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Circuit/System Description
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The body control module (BCM) monitors, receives and transmits serial data to each of the doors switches and window motors. When a window switch has been activated on the driver window switch, a signal is sent to the BCM which sends a signal to the appropriate window motor and the window motor will move in the direction commanded.
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Conditions for Running the DTC
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Battery voltage must be between 9-16 V.
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Conditions for Setting the DTC
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B316B 00
The BCM has detected the driver right front or left rear or right rear window switch is active for greater than 60 seconds.
B316B 02
The BCM has detected the driver left front window switch is active for greater than 60 seconds.
B317A 02
The BCM has detected the passenger window switch is active for greater than 60 seconds.
B318A 02
The BCM has detected the left rear window switch is active for greater than 60 seconds
B319A 02
The BCM has detected the right rear window switch is active for greater than 60 seconds
B316B 39
The BCM has detected an internal failure within the driver door switch
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Action Taken When the DTC Sets
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The affected power window will malfunction.
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Conditions for Clearing the DTC
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B316B 00, B316B 02, B317A 02, B318A 02, B319A 02
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•
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The DTC will be current for as long as the fault is present.
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•
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The DTC will change from current to history when the fault is no longer present.
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•
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A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present.
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B316B 39
If the DTC is current, the driver window switch must be replaced before the DTC can be cleared.
Schematic Reference
Moveable Window Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Power Windows Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References
for information on diagnostic tools
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Circuit/System Verification
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Ignition ON, command each window UP and DOWN by using each switch on the S79D window switch-driver and by using the S79P window switch-passenger, the S79LR window switch-left rear and the S79RR window switch-right rear. Each window should perform the UP and DOWN functions from each switch.
Driver Window Malfunction With Express Up/Express Down
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1.
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Ignition OFF, disconnect the harness connector at the S79D window switch-driver.
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2.
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Ignition ON, verify that the scan tool Driver Window Main Control Down Switch parameter is Inactive.
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3.
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If not the specifed value, test the control circuit terminal 3 for a short to ground. If the circuit tests normal, test or replace the M74D window motor-driver.
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4.
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Verify that the scan tool Driver Window Main Control Up Switch parameter is Inactive.
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5.
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If not the specifed value, test the control circuit terminal 6 for a short to ground. If the circuit tests normal, test or replace the M74D window motor-driver.
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6.
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Verify that the scan tool Driver Window Main Control Express Switch parameter is Inactive.
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7.
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If not the specifed value, test the control circuit terminal 2 for a short to ground. If the circuit tests normal, test or replace the M74D window motor-driver.
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8.
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If all circuits test normal, test or replace the S79D window switch-driver.
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Passenger Window Malfunction With Express Up/Express Down
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1.
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Ignition ON, verify that the scan tool Front Passenger Main Control Down Switch, the Front Passenger Main Control Express Switch, and the Front Passenger Main Control Up Switch parameters are inactive.
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2.
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If any of the parameters are always Active, replace the S79D window switch-driver.
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3.
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Ignition OFF, disconnect the harness connector at the S79P window switch-passenger.
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4.
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Ignition ON, verify that the scan tool Passenger Window Switch at Door parameter is Inactive.
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5.
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If the parameter is always Up, test the control circuit terminal 8 for a short to ground. If the circuit tests normal, replace the M74P window motor-passenger.
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6.
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If the parameter is always Down, test the control circuit terminal 7 for a short to ground. If the circuit tests normal, replace the M74P window motor-passenger
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7.
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If the parameter is always Express, test the control circuit terminal 6 for a short to ground. If the circuit tests normal, replace the M74P window motor-passenger.
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8.
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If all circuits test normal, test or replace the S79P window switch-passenger.
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Left Rear Window Malfunction With Express Up/Express Down
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1.
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Ignition ON, verify that the scan tool Left Rear Main Control Down Switch, the Left Rear Main Control Express Switch, and the Left Rear Main Control Up Switch parameters are inactive.
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2.
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If any of the parameters are always Active, replace the S79D window switch-driver.
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3.
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Ignition OFF, disconnect the harness connector at the S79LR window switch-left rear.
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4.
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Ignition ON, verify that the scan tool Left Rear Window Switch at Door parameter is Inactive.
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5.
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If the parameter is always Up, test the control circuit terminal 8 for a short to ground. If the circuit tests normal, replace the M74LR window motor-left rear.
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6.
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If the parameter is always Down, test the control circuit terminal 7 for a short to ground. If the circuit tests normal, replace the M74LR window motor-left rear
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7.
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If the parameter is always Express, test the control circuit terminal 6 for a short to ground. If the circuit tests normal, replace the M74LR window motor-left rear.
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8.
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If all circuits test normal, test or replace the S79LR window switch-left rear.
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Right Rear Window Malfunction With Express Up/Express Down
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1.
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Ignition ON, verify that the scan tool Right Rear Main Control Down Switch, the Right Rear Main Control Express Switch, and the Right Rear Main Control Up Switch parameters are inactive.
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2.
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If any of the parameters are always Active, replace the S79D window switch-driver.
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3.
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Ignition OFF, disconnect the harness connector at the S79LR window switch-left rear.
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4.
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Ignition ON, verify that the scan tool Right Rear Window Switch at Door parameter is Inactive.
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5.
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If the parameter is always Up, test the control circuit terminal 8 for a short to ground. If the circuit tests normal, replace the M74RR window motor-right rear.
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6.
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If the parameter is always Down, test the control circuit terminal 7 for a short to ground. If the circuit tests normal, replace the M74RR window motor-right rear.
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7.
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If the parameter is always Express, test the control circuit terminal 6 for a short to ground. If the circuit tests normal, replace the M74RR window motor-right rear.
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8.
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If all circuits test normal, test or replace the S79RR window switch-right rear.
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Window Switch Malfunction With Express Down Only
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1.
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Ignition ON, verify that the scan tool Driver Window Main Control Down Switch, Driver Window Main Control Express Switch, Driver Window Main Control Up Switch, Front Passenger Main Control Down Switch, Front Passenger Main Control Express Switch, Front Passenger Main Control Up Switch, Left Rear Window Main Control Down Switch, Left Rear Window Main Control Express Switch, Left Rear Window Main Control Up Switch, Right Rear Window Main Control Down Switch, Right Rear Window Main Control Express Switch, and Right Rear Window Main Control Up Switch parameters are inactive.
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2.
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If any of the parameters are always Active, replace the S79D window switch-driver.
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3.
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Verify that the scan tool Passenger Window Switch at Door parameter is Inactive.
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4.
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If not the specified value, replace the S79P window switch-passenger.
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5.
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Verify that the scan tool Left Rear Window Switch at Door parameter is Inactive.
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6.
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If not the specified value, replace the S79LR window switch-left rear.
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7.
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Verify that the scan tool Right Rear Window Switch at Door parameter is Inactive.
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8.
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If not the specified value, replace the S79RR window switch-right rear.
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Passenger And Rear Window Switch With Express Up/Express Down
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1.
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Ignition OFF, disconnect the harness connector at the appropriate S79 window switch.
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2.
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Test for infinite resistance between the control terminals listed below and the ground terminal 1 with the switch in the INACTIVE position.
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3.
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If less than the specified value, replace the S79 window switch.
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4.
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Test for less than 2 Ω between the control terminal 8 and the ground terminal 1 with the switch in the UP position.
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5.
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If greater than the specified range, replace the S79 window switch.
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6.
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Test for less than 2 Ω between the control terminal 7 and the ground terminal 1 with the switch in the DOWN position.
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7.
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If greater than the specified range, replace the S79 window switch.
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Perform the
Diagnostic Repair Verification
after completing the diagnostic procedure.
