Circuit Description
The endgate module monitors the endgate window motor hall effect sensors during window operation. When the endgate module detects that there are no hall sensor pulses or there is a difference between signal 1 and signal 2, a DTC is set.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC B3966 Endgate Window Position Sensor
Conditions for Setting the DTC
The endgate module detects that there are no hall sensor pulses or there is a difference between signal 1 and signal 2.
Action Taken When the DTC Sets
| • | Stores a current DTC B3966 in endgate module memory. |
| • | Stores a history DTC B3966 in endgate module memory. |
Conditions for Clearing the DTC
| • | The endgate module no longer detects a current DTC B3966 in endgate module memory. |
| • | The DTC is cleared using a scan tool. |
Diagnostic Aids
| • | The following conditions may cause an intermittent malfunction: |
| - | There is an intermittent sticking or binding condition in the window motor causing the motor to be unable to move. |
| - | The window motor is shorted internally. |
| • | If the DTC does not reset after the code is cleared, then the problem may be intermittent. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems. |
Test Description
The number below refers to the step number on the diagnostic table.
Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Body Rear End Schematics Connector End View Reference: Body Rear End Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
Inspect the endgate window for a sticking or binding condition. Did you find and correct the condition? | Go to Step 7 | Go to Step 3 | |
3 | Test the endgate window sensor signal 1, endgate window sensor signal 2, endgate window sensor reference and endgate window sensor return circuits for an open. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 7 | Go to Step 4 |
4 | Test the endgate window sensor reference circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs . Did you find and correct the condition? | Go to Step 7 | Go to Step 5 |
5 | Inspect for poor connections at the harness connector of the endgate window regulator. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 7 | Go to Step 7 |
6 |
Did you complete the replacement? | Go to Step 7 | -- |
7 |
Does the DTC reset? | Go to Step 2 | System OK |
