ON-VEHICLE SERVICE
HEATER, AIR CONDITIONER AND VENTILATION55-76
FAN CONTROL RELAY CONTINUITY
CHECK
IDLE-UP OPERATION CHECK
M1552001600371
1. Before inspection and adjustment, set vehicle in
the following condition:
•Engine coolant temperature: 80 − 90 °C•Lamps, electric cooling fan and accessories: Set
to OFF
•Transmission: Neutral ("N" or "P" for vehicles with
A/T)
•Steering wheel: Straightforward
2. Check whether or not the idle speed is the
standard value. <1300, 1600> Refer to GROUP
13A, On-vehicle Service − Basic Idle Speed
Adjustment P.13A-387.
<2000> Refer to GROUP 13B, On-vehicle Service
− Basic Idle Speed Adjustment P.13B-324.
Standard value: 750 ± 50 r/min
3. When the A/C is running after turning the A/C
switch to ON, and the blower switch to the 3(MH)
or 4(HI) position, check to be sure that the idle
speed is at the standard value.
Standard value: 850 ± 50 r/min
NOTE: It is not necessary to make an adjustment,
because the idling speed is automatically
adjusted by the ISC system. If, however, a
deviation from the standard value occurs for some
reason, check the ISC system.
CLEAN AIR FILTER REPLACEMENT
PROCEDURE
M1552020100030
1. Remove the glove box (Refer to GROUP 52A,
Instrument Panel P.52A-2).
2. Remove the two screws as shown, and replace
the clean air filter.
3. Install the glove box. Battery voltage Tester
connectionSpecified
condition
Not applied 2 − 4 Open circuit
•Connect
terminal 1 to
the positive
battery
terminal
•Connect
terminal 3 to
the negative
battery
terminal2 − 4 Less than 2
ohms
AC305307
Fan control relay
13
4 2
3 4
1 2
AC
AC305114AB
Air filter
Instrument panel
METER AND GAUGE
CIRCUIT DIAGRAMS90-87
METER AND GAUGE
M1901003501072
RELAY
BOXBATTERYFRONT-ECU
(TAIL LAMP RELAY)
TAIL LAMP,
POSITION LAMP,
LICENCE PLATE
LAMP AND LIGHTING
MONITOR BUZZER
ODO/TRIP
ENGINE
SPEED
DETECTION
CONNECTOR ENGINE-
ECU
ENGINE-
A/T-ECU
DIAGNOSIS
CONNECTOR
·TAIL LAMP, POSITION LAMP,
LICENCE PLATE LAMP AND
LIGHTING MONITOR BUZZER
·WINDSHIELD WIPER
AND WASHER ·FRONT FOG LAMP
·HEADLAMP
·HEADLAMP
LEVELLING SYSTEM
·REAR FOG LAMP
IGNITION
SWITCH (IG1)
COMBINATION
METER
CONTROL CIRCUIT
ENGINE
COOLANT
TEMPERATURE
GAUGE UNITFUEL
GAUGE
UNIT
NOTE
: SEDAN
: WAGON
: M/T
: A/T
FRONT SIDE : EXCEPT 4G6
: 4G6
WHITE METER>
METER AND GAUGE
CIRCUIT DIAGRAMS90-89
METER AND GAUGE
M1901003501083
DIAGNOSIS
CONNECTOR
RELAY
BOXBATTERYFRONT-ECU
TAIL
LAMP RELAY
TAIL LAMP,
POSITION LAMP,
LICENCE PLATE
LAMP AND LIGHTING
MONITOR BUZZERTAIL LAMP,
POSITION LAMP,
LICENCE PLATE
LAMP AND LIGHTING
MONITOR BUZZER
ODO/TRIP
ENGINE
SPEED
DETECTION
CONNECTOR ENGINE-
ECU
ENGINE-
A/T-ECU
RHEOSTAT ·TAIL LAMP, POSITION LAMP,
LICENCE PLATE LAMP AND
LIGHTING MONITOR BUZZER
·WINDSHIELD WIPER
AND WASHER
WINDSHIELD WIPER
AND WASHER ·FRONT FOG LAMP
·HEADLAMP
·HEADLAMP
LEVELLING SYSTEM
·REAR FOG LAMP
IGNITION
SWITCH (IG1)
COMBINATION
METER
CONTROL CIRCUIT
ENGINE
COOLANT
TEMPERATURE
GAUGE UNITFUEL
GAUGE
UNIT
NOTE
: SEDAN
: WAGON
: M/T
: A/T
: EXCEPT 4G6
: 4G6
FRONT
SIDE ·TAIL LAMP, POSITION LAMP,
LICENCE PLATE LAMP AND
LIGHTING MONITOR BUZZER
·TURN-SIGNAL LAMP AND
HAZARD WARNING LAMP
·WINDSHIELD WIPER
AND WASHER ·FRONT FOG LAMP
·HEADLAMP
·REAR FOG LAMP
·REAR WIPER AND WASHER
