Mazda 1996 626, Service Manual

Page: 290 / 533

11
REAR WINDOW DEFROSTER
--------------- JJ -----------
.2
*" 7T _
_
F E
C B
V—/ '
Step 8
1. Remove the rear window defroster switch.
2. Check for continuity between the switch terminals.
0 - 0 : Continuity
Term i nal
Position
B
c E
F
Normal o
----- ^}—
o
Push
0
---
— o
O
---
^—
o
3. If correct, go to Step 9.
4. If not as specified, replace the switch.
Step 9
Check for continuity between terminal C (B) of the rear
window defroster switch connector and ground.
Continuity
Action
Yes
Install rear window defroster switch and go
to Step 10
No Repair w iring harness
(Rear window defroster switch— GND)
Step 10
1. Turn the ignition switch to ON.
2. Measure the voltage at terminal 2S (V) of the CPU con­
nector.
B+: Battery positive voltage
Voltage Action
B+ Go to Step 11
Other Repair wiring harness
(Rear w indow defroster relay— CPU)
Step 11
1. Turn the ignition switch to OFF.
2. Disconnect the CPU connector.
3. Press on the rear window defroster switch.
4. Check for continuity between terminal 2T (G) of the
CPU connector and ground.
Continuity Action
Yes Replace CPU
No Repair wiring harness
(CPU— Rear window defroster switch)
11-8