DESCRIPTION
The rear air mix control servo motor (water valve servo motor) is controlled by the A/C amplifier.
The rear air mix control servo motor moves the air mix damper by rotating (normal, reverse) with electrical power from the A/C amplifier.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 READ VALUE OF INTELLIGENT TESTER
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
(c) Select the items in the DATA LIST, and read the display on the intelligent tester.
DATA LIST / AIR CONDITIONER
OK: When the target position is "MAX. COOL" (0%), the actual opening angle is 19.0% or less.
When the target position is "MAX. HOT" (86.5%), the actual opening angle is 81.0% or more.
Result
2 PERFORM ACTIVE TEST BY INTELLIGENT TESTER
(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
(c) Select the item below in the ACTIVE TEST and then check the air flow temperature by hand.
ACTIVE TEST / AIR CONDITIONER
OK: When the lever is moved to the "MAX. HOT" side, warm air comes out.
When the lever is moved to the "MAX. COOL" side, cool air comes out.
Result
3 PERFORM ACTUATOR CHECK
(a) Enter the actuator check mode (See page AC-15).
(b) Press the DEF switch and change to the step operation.
(c) Check the air flow temperature by hand.
OK: Air flow temperature changes in accordance with each display code.
Result
4 INSPECT REAR AIR MIX CONTROL SERVO MOTOR (WATER VALVE SERVO MOTOR)
(a) Remove the rear air mix control servo motor (water valve servo motor).
(b) Disconnect the connector from the rear air mix control servo motor.
(c) Connect the positive (+) lead from the battery to terminal 5 and the negative (-) lead to terminal 4, then check that the lever turns to the "MAX. COOL" position smoothly.
OK: Lever turns to "MAX. COOL" position smoothly.
(d) Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 5, then check that the lever turns to the "MAX. HOT" position smoothly.
OK: Lever turns to "MAX. HOT" position smoothly.
5 CHECK HARNESS AND CONNECTOR (REAR AIR MIX CONTROL SERVO MOTOR - A/C AMPLIFIER)
(a) Disconnect the connector from the A/C amplifier.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance
REPLACE A/C AMPLIFIER
Pressure Control Solenoid "A" Performance (Shift Solenoid
Valve SL1)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor to
detect the actual gear position (1st, 2nd, 3rd, 4th
or 5th gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory
to detect mechanical
problems of the shift solenoid valves, valve b ...
Engine assembly
Components
REMOVAL
1. DISCHARGE FUEL SYSTEM PRESSURE (See page
FU-13)
2. DISCHARGE REFRIGERANT FROM
REFRIGERATION SYSTEM (See page AC-172)
3. REMOVE BATTERY
(a) Disconnect the negative battery terminal.
(b) Disconnect the positive battery ...
Inspection
1. INSPECT SEAT HEATER SWITCH LH
Measure the resistance of the seat heater switch
when the switch is operated.
Resistance
If the result is not as specified, replace the switch.
HINT:
As the dial is being turned, the resistance changes
gradually.
Push the seat h ...