KEYLESS UNIT INSPECTION


BHE091467820W02

1. Measure voltage or inspect for continuity according to the Terminal Voltage Table (Reference).

• If the voltage is not as specified in the Terminal Voltage Table (Reference), inspect the parts under "Inspection item (s)".

2. If the system does not work properly even though the parts or related wiring harnesses do not have any malfunction, perform symptom troubleshooting.

Terminal Voltage Table (Reference)

Terminal

Signal name

Connected to

Measurement condition

Voltage (V)/Continuity

Inspection item (s)

1A
Power supply
D.LOCK 15 A fuse
Under any condition
B+
• D.LOCK 15 A fuse
• Battery
• Inspect related harness.
1B
Interior light control
• Map light
• Interior light
• Courtesy light
• Ground illumination light

Within 5 min after any door is opened.

1.2 or less
• ROOM 15 A fuse
• Map light (See MAP LIGHT INSPECTION.)
• Interior light (See INTERIOR LIGHT INSPECTION.)
• Courtesy light
• Ground illumination light
• Door switch (See DOOR SWITCH INSPECTION.)
• Rear door upper latch (See REAR DOOR UPPER LATCH SWITCH INSPECTION.)
• Rear door lower latch (See REAR DOOR LOWER LATCH SWITCH INSPECTION.)
• Inspect related harness.

5 min or more after any door is opened.

B+
All doors are closed.
B+
1C
Unlock output
Front door lock actuator
While door lock actuator is unlocking.
1.0 or less→ B+→ 1.0 or less
• Front door lock actuator (See FRONT DOOR LOCK ACTUATOR INSPECTION.)
• D.LOCK 15 A fuse
Other
1.0 or less
1D
Lock output
Front door lock actuator
While lock actuator is locking.
1.0 or less→ B+→ 1.0 or less
• Front door lock actuator (See FRONT DOOR LOCK ACTUATOR INSPECTION.)
• D.LOCK 15 A fuse
Other
1.0 or less
1E
GND
Body ground
Under any condition: Inspect for continuity to ground.
Continuity detected
GND
1F
Double lock output
Front door lock actuator
While lock actuator is double locking. (Transmitter UNLOCK button is pressed twice within 5 s.)
1.0 or less→ B+→ 1.0 or less
• Front door lock actuator (See FRONT DOOR LOCK ACTUATOR INSPECTION.)
• D.LOCK 15 A fuse
Other
1.0 or less
2A
Power supply
ROOM 15 A fuse
Under any condition
B+
ROOM 15 A fuse
2B
IG1
Ignition relay
Ignition switch at ON
B+
• Ignition relay
• Inspect related harness.
Ignition switch at LOCK or ACC
1.0 or less
2D
Bonnet open/closed
Bonnet latch switch
Bonnet open.
5
• Bonnet latch switch
• D.LOCK 15 A fuse
• Inspect related harness.
Bonnet closed.
1.0 or less
2E
Trunk lid unlock
Trunk lid opener relay
Transmitter trunk lid button is pressed.
B+→ 1.2 or less→ B+
• Trunk lid opener relay (See RELAY INSPECTION.)
• Trunk lid opener cancel switch (See TRUNK LID OPENER CANCEL SWITCH INSPECTION.)
• Inspect related harness.
Other
B+
2F
Key reminder switch
Key reminder switch
Key is in steering lock. (key reminder switch on)
B+
• Key reminder switch (See KEY REMINDER SWITCH INSPECTION.)
• Inspect related harness.
Other
1.0 or less
2G
Trunk compartment light switch on/off
Trunk compartment light switch
Trunk lid is open.
1.0 or less
• Trunk compartment light switch
• Trunk compartment light
• Inspect related harness.
Trunk lid is closed.
B+
2L
Unlock input (Passenger-door lock-link switch)
Passenger-door lock-link switch
Passenger-door is locked.
5
Passenger-door lock-link switch (See FRONT DOOR LOCK ACTUATOR INSPECTION.)
Passenger-door is unlocked.
1.0 or less
2I
Hazard
Flasher unit
Transmitter LOCK button operated
B+→ 1.0 or less→ B+
• Flasher unit
• Inspect related harness.
Transmitter UNLOCK button operated
B+→ 1.0 or less→ B+→ 1.0 or less→ B+
Theft-deterrent system alarm: Active
1.0 or less
2J
Security light
Instrument cluster
Security light off
B+
• Instrument cluster (See INSTRUMENT CLUSTER INSPECTION.)
• Inspect related harness.
Within approx. 3 s after ignition switch is turned to ON position (security light illuminates)
5.5 or less
2K
Door open/closed
Door switch
Any door is open.
(Door switch on)
2.0 or less
• Instrument cluster (See INSTRUMENT CLUSTER INSPECTION.)
• Door switch (See DOOR SWITCH INSPECTION.)
• Rear door upper latch (See REAR DOOR UPPER LATCH SWITCH INSPECTION.)
• Rear door lower latch (See REAR DOOR LOWER LATCH SWITCH INSPECTION.)
• Inspect related harness.
All doors are closed.
(Door switch off)
B+
2M
Intruder sensor power supply
Intruder sensor
Theft-deterrent system pre-arming, arming, or alarm
Alternates between B+ and 2.0 or more
• Inspect related harness
Other
1.0 or less
2N
ENABLE
Keyless receiver
Any transmitter button is pressed without key in steering lock. (key reminder switch off)
5→ 1.0 or less
• Keyless receiver (See KEYLESS RECEIVER INSPECTION.)
• Inspect related harness.
Key is in steering lock. (key reminder switch on)
5
2P
DATA
Keyless receiver
Any transmitter button is pressed without key in steering lock. (key reminder switch off)
1.0 or less → changes positively
• Keyless receiver (See KEYLESS RECEIVER INSPECTION.)
• Inspect related harness.
Key is in steering lock. (key reminder switch on)
1.0 or less
2Q
Lock input (Driver-side door lock-link switch)
Driver-side door lock-link switch
Driver-side door is locked.
1.0 or less
Driver-side door lock-link switch (See FRONT DOOR LOCK ACTUATOR INSPECTION.)
Driver-side door is unlocked.
5
2R
Unlock input (Driver-side door lock-link switch)
Driver-side door lock-link switch
Driver-side door is locked.
5
Driver-side door lock-link switch (See FRONT DOOR LOCK ACTUATOR INSPECTION.)
Driver-side door is unlocked.
1.0 or less
2S
Lock/unlock input (Driver-side door key cylinder switch)
Driver-side door key cylinder switch
Driver-side door key cylinder is locked.
Approx. 2.5
• Driver-door key cylinder switch (See FRONT DOOR LOCK ACTUATOR INSPECTION.)
• Inspect related harness.
Driver-side door key cylinder is unlocked.
1.0 or less
Other
5
2T
Theft-deterrent siren on/off
Theft-deterrent siren
Theft-deterrent system: Arming
Alternates between 1.0 or less and B+
• Inspect related harness
Theft-deterrent system : disarming
B+
2U
Lock release power supply
Buckle switch

Within 60 min after any door is opened

B+
• Instrument cluster (See INSTRUMENT CLUSTER INSPECTION.)
• Door switch (See DOOR SWITCH INSPECTION.)
• Rear door upper latch (See REAR DOOR UPPER LATCH SWITCH INSPECTION.)
• Rear door lower latch (See REAR DOOR LOWER LATCH SWITCH INSPECTION.)
• Front buckle switch (See FRONT BUCKLE SWITCH INSPECTION.)
• Inspect related harness.
All doors are closed.
No Continuity

60 min after any door is opened

Continuity detected
2W
GND
Body ground
Under any condition: Inspect for continuity to ground.
Continuity detected
GND
2X
Intruder sensor on/off
Intruder sensor
Theft-deterrent system: Active
1.0 or less
• Inspect related harness
Theft-deterrent system: Other
Alternates between B+ and 4.5 or more
3A
HS-CAN+
PCM
Under any condition: Inspect wiring harness to PCM for continuity.
Continuity detected
-
3B
HS-CAN-
PCM
Under any condition: Inspect wiring harness to PCM for continuity.
Continuity detected
-
3E
Tx
Coil
Ignition switch at ON
8 or more
Coil
Ignition switch at LOCK or ACC
1.0 or less
3F
Rx
Coil
Ignition switch at ON
8 or more
Coil
Ignition switch at LOCK or ACC
1.0 or less