Orlando

DTC B3849

The driver exterior door handle switch signal circuit provides inputs to the keyless entry control module when the driver exterior door handle switch is activated. These inputs allow the keyless entry control module to detect a driver door open request. The keyless entry control module provides a signal voltage to the driver exterior door handle switch via the driver door handle switch signal circuit. When the driver door handle is activated, the switch closes and the voltage signals from the keyless entry control module is pulled to ground.

Battery voltage is between 9-16 V.

The keyless entry control module detects the driver exterior door handle switch signal circuit is short-circuited to ground or closed for more than 180 s.

The driver door will not open when the exterior passenger door handle is pulled unless the door is first unlocked.

The driver exterior door handle will fail to trigger an unlock command of a locked vehicle.

Schematic Reference

Door Lock/Indicator Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Keyless Entry System Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

Ignition ON, observe the scan tool keyless entry control module Exterior Driver Door Handle Switch parameter while pulling and releasing the driver door handle. The parameter should change between Active and Inactive each time the handle is pulled and released.

1. Ignition OFF, disconnect the harness connector at the B27A door handle switch - driver exterior.
2. Test for less than 5 Ω between the ground circuit terminal 1 and ground.

⇒	If greater than the specified range, test the ground circuit for an open/high resistance.

3. Ignition ON, verify the scan tool Exterior Driver Door Handle Switch parameter is Inactive.

⇒	If not the specified value, test the signal circuit terminal 2 for a short to ground. If the circuit tests normal, replace the K84 keyless entry control module.

4. Install a 3 A fused jumper wire between the signal circuit terminal 2 and the ground circuit terminal 1. Verify the scan tool Exterior Driver Door Handle Switch parameter is Active.

⇒	If not the specified value, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the K84 keyless entry control module

5. If all circuits test normal, test or replace the B27A door handle switch - driver exterior.

Static Test

1. Ignition OFF, disconnect the harness connector at the B27A door handle switch - driver exterior.
2. With the switch in the open position, test for infinite resistance between the signal terminal 2 and the ground terminal 1.

⇒	If not the specified value, replace the B27A door handle switch - driver exterior.

3. With the switch in the closed position, test for less than 5 Ω between the signal terminal 2 and the ground terminal 1

⇒	If greater than the specified range, replace the B27A door handle switch - driver exterior.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.