Air Conditioning System (For Manual Air Conditioning System) Recirculation Damper Servo Motor Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT RECIRCULATION DAMPER SERVO MOTOR

INSPECT NO. 1 HEATER CONTROL (AIR INLET CONTROL SWITCH)

CHECK HARNESS AND CONNECTOR (RECIRCULATION DAMPER SERVO MOTOR - BATTERY)

CHECK HARNESS AND CONNECTOR (NO. 1 HEATER CONTROL (AIR INLET CONTROL SWITCH) - BATTERY)

CHECK HARNESS AND CONNECTOR (NO. 1 HEATER CONTROL(AIR INLET CONTROL SWITCH) - BODY GROUND)

CHECK HARNESS AND CONNECTOR (NO. 1 HEATER CONTROL - RECIRCULATION DAMPER SERVO MOTOR)

CHECK HARNESS AND CONNECTOR (NO. 1 HEATER CONTROL - A/C AMPLIFIER)

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

1. Remove the recirculation damper servo motor.
   

2. Disconnect the connector from the recirculation damper servo motor.
   

3. Connect a positive (+) lead from the battery to terminal 5 and a negative (-) lead from the battery to terminal 2, then check that the arm turns to the "FRESH" side smoothly.
   

   OK:

   Lever turns to "FRESH" side smoothly.
   

4. Connect a positive (+) lead from the battery to terminal 5 and a negative (-) lead from the battery to terminal 1, then check that the arm turns to the "RECIRCULATION" side smoothly.
   

   OK:

   Lever turns to "RECIRCULATION" side smoothly.
   

   Text in Illustration

   *a	Component without harness connected (Recirculation Damper Servo Motor)
   *b	Recirculation
   *c	Fresh

1. Remove the No. 1 heater control (air inlet control switch).
   

2. Disconnect the connector from the No. 1 heater control (air inlet control switch).
   

3. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Switch Condition	Specified Condition
   E69-3 (FRS) - E69-4 (REC)	Air inlet control switch: FREE	Below 1 Ω
   E69-3 (FRS) - E69-4 (REC)	Air inlet control switch: LOCK	10 kΩ or higher
   E69-1 (F/D) - E69-8 (ACID)	Mode control dial: except Foot/DEF position and DEF position	10 kΩ or higher
   E69-1 (F/D) - E69-8 (ACID)	Mode control dial: Foot/DEF position or DEF position	Below 1 Ω

4. Check that the indicator light comes on.
   

   1. Turn the heater control base (air inlet control switch) to LOCK.
      

   2. Connect a positive (+) lead from the battery to terminal 2 and a negative (-) lead from the battery to terminal 4, and check that the indicator light comes on.
      

      OK:

      The indicator light comes on.
      

5. Check that the illumination comes on.
   

   1. Connect a positive (+) lead from the battery to terminal 7 and negative (-) lead from the battery to terminal 6, and check that the illumination comes on.
      

      OK:

      The illumination comes on.
      

      Text in Illustration

      *a	Component without harness connected (No. 1 Heater Control (Air Inlet Control Switch))

1. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   E68-5 (IG+) - Body ground	Ignition switch off	Below 1 V
   E68-5 (IG+) - Body ground	Ignition switch ON	11 to 14 V

   Text in Illustration

   *a	Front view of wire harness connector (to Recirculation Damper Servo Motor)

1. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   E69-2 (A/C+) - Body ground	Ignition switch off	Below 1 V
   E69-2 (A/C+) - Body ground	Ignition switch ON	11 to 14 V
   E69-8 (ACID) - Body ground	Ignition switch off	Below 1 V
   E69-8 (ACID) - Body ground	Ignition switch ON	11 to 14 V

   Text in Illustration

   *a	Front view of wire harness connector (to No. 1 Heater Control (Air Inlet Control Switch))

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   E69-4 (REC) - Body ground	Always	Below 1 Ω

1. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   E69-3 (FRS) - E68-2 (FRS)	Always	Below 1 Ω
   E69-5 (LED+) - E68-1 (REC)	Always	Below 1 Ω
   E69-3 (FRS) - Body ground	Always	10 kΩ or higher
   E69-5 (LED+) - Body ground	Always	10 kΩ or higher

1. Disconnect the connector from the A/C amplifier.
   

2. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   E69-1 (F/D) - E62-15 (A/C)*1	Always	Below 1 Ω
   E69-1 (F/D) - E111-27 (A/C)*2	Always	Below 1 Ω
   E69-1 (F/D) - Body ground	Always	10 kΩ or higher

   1. *1: except TMC Made 2AZ-FE
      
   2. *2: for TMC Made and except TMC Made 2ZR-FE