B196C

B196C - Power Liftgate Close Direction Excessive Position Sensor Counts






For a complete wiring diagram, refer to.

• When Monitored: During power liftgate closing cycle.

• Set Condition: If the PLG module detects that the power liftgate drive unit has generated excessive pulses during a full power cycle, this code will set.






Test Step 1 - DTC Present

• With the scan tool, record and erase DTCs.

• Turn the ignition OFF, wait 10 seconds, then turn the ignition ON.

• Operate the power liftgate several times from stop to stop if possible.

• With the scan tool, read Active DTCs.

Does the scan tool display B196C - Power Liftgate Close Direction Excessive Position Sensor Counts?

Yes

• Go to Test Step 2

No

• Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition. Operate the liftgate several times and check for any binding conditions.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - Binding Liftgate

• Examine the liftgate for proper alignment, worn or binding hinges, weak liftgate prop assembly, loose/hard weatherstrip seal, for wear or anything that would cause an obstruction to proper operation.

• If necessary manually operate the power liftgate on a known good vehicle and notice the effort needed to open and close for comparison.

Were there any mechanical problems found?

Yes

• Refer to service information for the related symptoms.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Go to Test Step 3

Test Step 3 - Power Liftgate Latch

• With the scan tool, monitor the secondary ratchet switch closed.

• Using a screwdriver, click the latch to the closed position while observing the scan tool.

• Unlatch the latch by pressing the handle switch and observe the scan tool for a change of state.

• Repeat this step several times while moving the liftgate in different positions and wiggling the harness to check for an intermittent open or short circuit.

Did the scan tool show the switch state changing correctly every time?

No

• Go to Test Step 4

Yes

• Go to Test Step 5

Test Step 4 - Check the Latch Secondary Position Sense Circuit for a Short to Ground






• Turn the ignition OFF.

• Disconnect the power liftgate latch harness connector.

• Measure the resistance between ground and the latch secondary position sense circuit.

• Wiggle the harness while observing the ohmmeter.

Is the resistance less than 10k ohms?

No

• Replace the power liftgate latch assembly.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Yes

• Repair the latch secondary position sense circuit for a short to ground.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 5 - Power Liftgate Module - Position Sense Open

• Operate the liftgate from the full closed position and put an obstacle in its path to make it reverse.

Did the liftgate reverse back to the closed position?

Yes

• Replace the power liftgate drive unit.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Replace the power liftgate module.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior