NST13165-2_A 2019-02-12
Page 7
TROUBLESHOOTING
SYMPTOM - KEYLESS ENTRY
2 Door Does Not Unlock When Pressing the Unlock Switch
POSSIBLE CAUSE
CORRECTIVE ACTION
2.1.1
Try unlocking the door using
the Keychain Tag. If the door
unlocks, the unlock switch or
wire harness is defective.
2.1
The unlock switch is damaged or defective
Note: Door does unlock when swiped
2.2
The harness connection between the
switch and the Antenna/Reader has
failed
2.3
The connector or terminal crimps have
failed
2.2.2
If the switch is OK, check the wire harness and
connectors and repair as needed.
2.3.2
If the Antenna/Reader red LED does not
flash and you have verified there is an
input on pin #5 when the switch is
pressed, then replace the antenna.
Verify that a ground signal is present at the switch on
the #2 COM terminal when the switch is NOT pressed
to check the wire harness connection.
2.1.2
If there is a ground signal present on the
#2 COM terminal, press the switch and
check for ground on the normally open
(NO) terminal. If ground is not detected
on both terminals, the switch is
defective.
2.2.1
If the switch is OK, check the input pin on
the Anntenna/Reader connector, pin #5.
There should be a ground on this terminal
when the switch is pressed. If there is no
ground, correct or replace the harness.
2.3.1
Using a ground input, touch pin #5 on the
Antenna/Reader connector. If the red LED flashes
once and the door unlocks, the Antenna/Reader and
connector are OK. Locate the connector or crimp
problem and repair or replace the wire harness.
