Mazda 1996 626 Service Manual page 339

J
Symptom Power antenna does not operate
Possible cause
• Damaged audio unit
• Damaged power antenna
• Open or short circuit in wiring harness
• Poor connection of connector
1M 1K > T < 1EI1D 1A
1N 1L * I *
J -2 6
AUDIO
Step 1
1.Turn the ignition switch to ACC and turn the audio
power switch on.
2. Measure the voltage at the terminals of the power
antenna connector.
Terminal
B
A
Step 2
1. Turn the ignition switch to LOCK.
2. Disconnect the power antenna connector.
3. Check for continuity between terminal F (B) of the
power antenna connector and ground.
Continuity
Yes
No
Step 3
1. Remove the audio unit.
(Refer to page J-27.)
2 .Turn the ignition switch to ACC and turn the audio
T *
i f i d
power switch on.
3. Measure the voltage at terminal 1D (LG/W) of the audio
unit connector.
___________________________________B+: Battery positive voltage
Continuity
B+
Oth er
B+: Battery positive voltage
Voltage Action
B+
Measure voltage at terminal A
Other Repair wiring harness
(ROOM 15A fuse— Power antenna)
B+ Go to Step 2
Other
Go to Step 3
Action
Replace power antenna
(Refer to page J-29)
Repair wiring harness
(Power antenna— GND)
Action
Repair wiring harness
(Audio unit— Power antenna)
Replace audio unit
(Refer to page J-27)