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

Connection to
Terminal Input Output
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
switch
(BL)
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 A -9 3 )
2. Replace the E/L control unit.
3. Install in the reverse order of removal.
CONTROL SYSTEM
Idle
Battery voltage
—
OV
Battery voltage
Below 1.5V
OV
Battery voltage
Battery voltage
Below 1.5V
Below 1.5V
Approx. 5V
Below 1,5V
Battery voltage
4A
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
4A—95