Door Lock Timer Unit Inspection - Mazda 6 2002 Workshop Manual

DOOR LOCK TIMER UNIT INSPECTION

1. Measure the voltage at the door lock timer unit terminals (other than terminal 1E and 2W) as indicated below.
• If not as specified, inspect the parts listed under “Action.”
2. Disconnect the negative battery cable.
3. Disconnect the door lock timer unit connector and inspect for continuity between terminal 1E or 2W and the
bracket.
4. Inspect for continuity at terminal 1E and 2W as indicated below.
5. If the parts and wiring harnesses are okay but the system still does not work properly, perform the troubleshooting.
Terminal voltage list (Reference)
Terminal Signal
Power
1A D. LOCK 30 A fuse
supply
• Front map light
Room light
1B • Rear map light
control
• Courtesy light
• Door lock
Unlock • Trunk lid lock
1C
output
• Liftgate lock
• Door lock
• Trunk lid lock
1D Lock output
• Liftgate lock
Power
1E GND
ground
Double lock
*1
Door lock actuator
1F
output
Power
2A METER IG 15 A fuse Under any condition
supply
2B IG1 ROOM 15 A fuse
2C -
S–34
POWER DOOR LOCK SYSTEM
Connected to
Under any condition
Any door is open
While lock actuator is unlocking
actuator
actuator (4SD)
Other
actuator (5HB)
While lock actuator is locking
actuator
actuator (4SD)
Other
actuator (5HB)
Under any condition: inspect for
continuity to ground
Door lock actuators are double
locked
Other
Ignition switch is at ON position
Ignition switch is at LOCK or
ACC position
-
Test condition
-
Voltage (V)/
Continuity
• Inspect D. LOCK
30 A fuse
• Inspect the vehicle
B+
battery
• Inspect related
harness
• Inspect ROOM 15 A
fuse
• Inspect door switch
• Inspect front map light
Below 1.0
• Inspect rear map light
• Inspect courtesy light
• Inspect related
harness
Below • Inspect door lock
1.0→B+→Below actuator
1.0 • Inspect trunk lid lock
actuator (4SD)
• Inspect liftgate lock
actuator (5HB)
• Inspect D. LOCK
Below 1.0
30 A fuse
• Inspect related
harness
Below • Inspect door lock
1.0→B+→Below actuator
1.0 • Inspect trunk lid lock
actuator (4SD)
• Inspect liftgate lock
actuator (5HB)
• Inspect D. LOCK
Below 1.0
30 A fuse
• Inspect related
harness
Yes • Inspect GND
Below
• Inspect door lock
1.0→B+→Below
actuator
1.0
• Inspect related
harness
Below 1.0
• Inspect METER IG
15 A fuse
B+
• Inspect related
harness
B+ • Inspect ROOM 15 A
fuse
• Inspect related
Below 1.0
harness
-
A6E771867830W02
A6E7718W017
Action
-