Page 3617 of 4179
TROUBLE DIAGNOSIS
MTC-9
C
D
E
F
G
H
I
K
L
MA
B
MTC
Mode DoorEJS001FF
SYMPTOM: Air outlet does not change.
INSPECTION FLOW
*1MTC-5, "Discharge Air Flow".*2MTC-7, "Operational Check".*3MTC-31, "MODE DOOR".
*4MTC-3, "
SYMPTOM TABLE".
RJIA0592E
Page 3618 of 4179
MTC-10
TROUBLE DIAGNOSIS
Air Mix DoorEJS001FG
SYMPTOM: Air mix door does not change.
INSPECTION FLOW
*1MTC-32, "AIR MIX DOOR".*2MTC-3, "SYMPTOM TABLE".*3MTC-7, "Operational Check".
RJIA0593E
Page 3619 of 4179
TROUBLE DIAGNOSIS
MTC-11
C
D
E
F
G
H
I
K
L
MA
B
MTC
Intake Door Motor CircuitEJS004HC
SYMPTOM:
Intake door does not change.
Intake door motor does not operate normally.
INSPECTION FLOW
COMPONENT DESCRIPTION
Intake Door Motor
The intake door motor is attached to the intake unit. It rotates so that
air is drawn from inlets set by the heater control panel. Motor rotation
is conveyed to a lever which activates the intake door.
*1MTC-11, "Intake Door Motor Circuit".*2MTC-7, "Operational Check".*3MTC-3, "SYMPTOM TABLE".
RJIA0594E
RJIA0519E
Page 3620 of 4179

MTC-12
TROUBLE DIAGNOSIS
DIAGNOSTIC PROCEDURE FOR INTAKE DOOR MOTOR
SYMPTOM: Intake door does not operate normally.
1. CHECK POWER SUPPLY FOR HEATER CONTROL PANEL
1. Disconnect heater control panel connector.
2. Turn ignition switch ON.
3. Check voltage between heater control panel harness connector
M55 terminal 1 (BR/Y) and ground.
OK or NG
OK >> GO TO 2.
NG >> Check power supply circuit and 10 A fuse [No. 15,
located in the fuse block (J/B)]. Refer to PG-75, "
FUSE
BLOCK - JUNCTION BOX (J/B)" .
If OK, check harness for open circuit. Repair or replace if necessary.
If NG, replace fuse and check harness for short circuit. Repair or replace if necessary.
2. CHECK GROUND CIRCUIT FOR HEATER CONTROL PANEL
1. Turn ignition switch OFF.
2. Check continuity between heater control panel harness connec-
tor M55 terminal 5 (B) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK RECIRCULATION SWITCH CIRCUIT
1. Press REC (recirculation) switch.
2. Check continuity between heater control panel harness connec-
tor M55 terminal 1 (BR/Y) and 5 (B).
OK or NG
OK >> GO TO 4.
NG >> Replace heater control panel.
RJIA2846E
1 – Ground : Battery voltage
RJIA2923E
5 – Ground : Continuity should exist.
RJIA2924E
1 (−) – 5 (+) : Continuity should exist.
RJIA2925E
Page 3621 of 4179
TROUBLE DIAGNOSIS
MTC-13
C
D
E
F
G
H
I
K
L
MA
B
MTC
4. CHECK POWER SUPPLY FOR INTAKE DOOR MOTOR
1. Reconnect heater control panel connector.
2. Turn ignition switch ON.
3. Check voltage between intake door motor harness connector M48 terminal 1 (Y/R: RHD models, R/W:
LHD models) and 2 (R/W: RHD models, L/R: LHD models).
OK or NG
OK >> Replace intake door motor.
NG >> GO TO 5.
ModelTerminals
Condition Voltage (+) (-)
Intake door motor
connectorTerminal No.
(wire color)Intake door motor
connectorTerminal No.
(wire color)
RHD
modelsM482 (R/W)
M481 (Y/R) REC SW: ON
Approx. 12V
1 (Y/R) 2 (R/W) REC SW: OFF
LHD
modelsM481 (R/W)
M482 (Y/R) REC SW: ON
Approx. 12V
2 (Y/R) 1 (R/W) REC SW: OFF
RJIA2847E
Page 3622 of 4179
MTC-14
TROUBLE DIAGNOSIS
5. CHECK CIRCUIT CONTINUITY BETWEEN HEATER CONTROL PANEL AND INTAKE DOOR MOTOR
1. Turn ignition switch OFF.
2. Disconnect heater control panel connector and intake door motor connector.
3. Check continuity between heater control panel harness connector M55 terminal 10 (R/W) and intake door
motor harness connector M48 terminal 2 (R/W: RHD models) or 1 (R/W: LHD models).
4. Check continuity between heater control panel harness connector M55 terminal 11 (Y/R) and intake door
motor harness connector M48 terminal 1 (Y/R: RHD models) or 2 (Y/R: LHD models).
OK or NG
OK >> Replace heater control panel.
NG >> Repair harness or connector.
Te r m i n a l s
Continuity Heater control panel connec-
torIntake door motor connector
ConnectorTerminal No.
(wire color)ConnectorTerminal No.
(wire color)
M55 10 (R/W) M48 2 (R/W): RHD models
Ye s 1 (R/W): LHD models
M55 11 (Y/R) M48 1 (Y/R): RHD models
2 (Y/R): LHD models
RJIA3145E
Page 3623 of 4179
TROUBLE DIAGNOSIS
MTC-15
C
D
E
F
G
H
I
K
L
MA
B
MTC
Blower Motor CircuitEJS001FI
SYMPTOM: Blower motor operation is malfunctioning.
INSPECTION FLOW
*1MTC-16, "DIAGNOSTIC PROCE-
DURE FOR BLOWER MOTOR".*2MTC-7, "
Operational Check".*3MTC-3, "SYMPTOM TABLE".
*4MTC-7, "
Operational Check".
RJIA0601E
Page 3624 of 4179

MTC-16
TROUBLE DIAGNOSIS
DIAGNOSTIC PROCEDURE FOR BLOWER MOTOR
SYMPTOM: Blower motor operation is malfunctioning.
1. CHECK POWER SUPPLY FOR BLOWER MOTOR
1. Disconnect blower motor connector.
2. Turn ignition switch ON.
3. Check voltage between blower motor harness connector M65
terminal 1 (L/W) and ground.
OK or NG
OK >> GO TO 2.
NG >> Check power supply circuit and 15A fuses [Nos. 19 and
24, located in the fuse block (J/B)]. Refer to PG-75,
"FUSE BLOCK - JUNCTION BOX (J/B)" .
If OK, check harness for open circuit. Repair or replace if necessary.
If NG, replace fuse and check harness for short circuit. Repair or replace if necessary.
2. CHECK GROUND CIRCUIT FOR BLOWER MOTOR
1. Turn ignition switch OFF.
2. Turn fan switch to 1-speed.
3. Check continuity between blower motor harness connector M65
terminal 2 (L/B) and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3. CHECK BLOWER MOTOR
Refer to MTC-18, "
Blower Motor" .
OK or NG
OK >> INSPECTION END
NG >> Replace blower motor.
RJIA0602E
1 – Ground : Battery voltage
RJIA2929E
2 – Ground : Continuity should exist.
RJIA2930E