Mazda 1996 626 Service Manual page 236

I
E
F
G -2 2
TROUBLESHOOTING GUIDE
Step 2
1. Remove the A/C relay.
2. Turn the ignition switch to ON.
3. Measure the voltage at the following terminal wires of
the A/C relay connector.
Wire
(L)
(G/W)
Terminal E
Step 3
n .
1. Connect battery positive voltage and check for continu­
c
A
ity between the terminals of the A/C relay.
D
B
B+
—
2. If correct, reinstall the A/C relay and go to Step 4.
3. If not as specified, replace the A/C relay.
Step 4
1. Remove the front console.
(Refer to the 1996 626/MX-6 Workshop Manual, section S.)
2. Disconnect the appropriate PCM (ECM: MIX) connector.
3. Connect a jumper wire between the terminal wire (G/W)
of the A/C relay connector and ground.
4. Turn the ignition switch to ON, and verify that the mag­
netic clutch and condenser fan operate.
Magnetic clutch and
condenser fan
Operate
Do not operate
Step 5
1. Turn the A/C switch on and set the fan switch to the first
position.
2. Verify that the A/C switch indicator light illuminates.
Illuminates
Does not illuminate
Voltage
B+ Measure voltage at (G/W) wire
Other Repair wiring harness
(A/C relay— WIPER 20 A fuse)
B+ Go to Step 3
Other Repair wiring harness
(A/C relay— AIR-COND 30 A fuse)
0 - 0 : Continuity 0 * K ~ 0 : Diode B+: Battery positive voltage
Connection
GND D
—
f e A
i
1 U !
U
P
D A
Transaxle
MTX
ATX
Remove jumper wire, reconnect PCM
(ECM: MTX) connector, and go to Step 5
Repair wiring harness
(A/C relay— Magnetic clutch, condenser fan)
Indicator light
Go to Step 6
Inspect heater control unit
(Refer to page G-^43)
B+: Battery positive voltage
Action
Terminal
E
A B C
•hO
0 - 1
k
n
— o
o —
Connector
22-pin
60-pin
Action
Action
F
r
-s