E/L Control Unit - Mazda 626 MX-6 Workshop Manual

4B
CONTROL SYSTEM
Terminal Input Output Connection to
A
— — Ignition switch
(BW)
B
— —
C
— Ground
-
(B)
D
O
Electrical fan relay
(LY)
E
Control unit (11 )
(GY)
F
O
Headlight switch
(W)
G
o
Blower motor switch
(LB)
H Rear defroster
o
(BL) switch
4B—110

E/L CONTROL UNIT

Inspection
1. Connect a voltmeter between the E/L control unit
and ground.
2. Start the engine and check the terminal voltages
as described below.
69G04A-174
Voltage (after warm-up)
Ignition switch: ON
—
Replacement
1. Remove the engine control unit. (Refer to page
4 B -1 0 8 )
2. Replace the E/L control unit.
3. Install in the reverse order of removal.
Idle
Battery voltage
—
OV
Battary voltage
Below 1.5V
OV
Battery voltage
Battery voltage
Below 1,5V
Below 1,5V
Approx. 5V
Below 1,5V
Battery voltage
'V
Remarks
—
Coolant temp.:
below 97°C (207°F)
Coolant temp.:
above 97°C (207°F)
E/L: ON
E/L: OFF
Headlight switch:
ON
Headlight switch:
OFF
Blower motor switch: ON
(3rd or 4th position)
Others
Rear defroster
switch: ON
Rear defroster
switch: OFF
86U04A-179