Page 2089 of 3189

TROUBLE DIAGNOSIS
ATC-109
C
D
E
F
G
H
I
K
L
MA
B
AT C
2.CHECK INTAKE SENSOR CIRCUIT BETWEEN INTAKE SENSOR AND AUTO AMP.
Disconnect auto amp. harness connector.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK INTAKE SENSOR
Refer to ATC-108, "
Intake Sensor" .
OK or NG
OK >> 1. Replace auto amp.
2. Go to AT C - 4 3 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
NG >> 1. Replace intake sensor.
2. Go to AT C - 4 3 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
4.CHECK INTAKE SENSOR CIRCUIT BETWEEN INTAKE SENSOR AND AUTO AMP.
Disconnect auto amp. harness connector.
OK or NG
OK >> 1. Replace auto amp.
2. Go to AT C - 4 3 , "
FUNCTION CONFIRMATION PRO-
CEDURE" and perform self-diagnosis STEP-2. Con-
firm that code No. 20 is displayed.
NG >> Repair harness or connector.
Multiplex Communication CircuitEJS001ZZ
DIAGNOSTIC PROCEDURE FOR MULTIPLEX COMMUNICATION CIRCUIT
SYMPTOM:
●A/C system cannot be controlled.
Terminal
Continuity (+) (-)
Intake sensor
connectorTerminal No.
(Wire color)Auto amp.
connectorTe r m i n a l N o .
(Wire color)
M197 2 (B/Y) M204 11 (B/Y) Yes
RJIA0820E
Terminal
Continuity (+) (-)
Intake sensor
connector Terminal No.
(Wire color)Auto amp.
connectorTe r m i n a l N o .
(Wire color)
M197 1 (OR/B) M204 1 (OR/B) Yes
RJIA0821E
RJIA1716E
Page 2090 of 3189
ATC-110
TROUBLE DIAGNOSIS
1. CHECK FOR AUTO AMP. OUTPUT
Confirm multiplex communication signal using an oscilloscope.
OK or NG
OK >> GO TO 2.
NG >> Replace auto amp.
Te r m i n a l
Voltage
Auto amp.
connectorTerminal No.
(Wire color)
M759 (L/W)
20 (L)
RJIA0212E
HAK0363D
Page 2091 of 3189
TROUBLE DIAGNOSIS
ATC-111
C
D
E
F
G
H
I
K
L
MA
B
AT C
2.CHECK CIRCUIT CONTINUITY BETWEEN AUTO AMP. AND DISPLAY (OR AV AND NAVI CONTROL
UNIT)
Disconnect DISPLAY (or AV AND NAVI CONTROL UNIT) and auto amp. connector.
Without navigation system
With navigation system
OK or NG
OK >> Reconnect DISPLAY (OR AV AND NAVI CONTROL UNIT) and auto amp. connector. And GO TO
3.
NG >> Repair harness or connector.
3.CHECK FOR AUTO AMP. INPUT
Confirm multiplex communication signal using an oscilloscope.
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.
Terminal
Continuity (+) (-)
DISPLAY
connectorTerminal No.
(Wire color)Auto amp.
connectorTerminal No.
(Wire color)
M9914 (L/W)
M2049 (L/W)
Ye s
16 (L) 20 (L)
Terminal
Continuity (+) (-)
AV AND NAVI
CONTROL
UNIT connectorTerminal No.
(Wire color)Auto amp.
connectorTe r m i n a l N o .
(Wire color)
M9644 (L/W)
M2049 (L/W)
Ye s
45 (L) 20 (L)
RJIA1717E
Te r m i n a l
Voltage
Auto amp.
connectorTerminal No.
(Wire color)
M204 10 (L/R)
RJIA0213E
Page 2092 of 3189
ATC-112
TROUBLE DIAGNOSIS
4. CHECK CIRCUIT CONTINUITY BETWEEN DISPLAY (OR AV AND NAVI CONTROL UNIT) AND AUTO
AMP.
Disconnect DISPLAY (or AV AND NAVI CONTROL UNIT) and auto amp. connector.
Without navigation system
With navigation system
OK or NG
OK >> Replace auto amp.
NG >> Repair harness or connector.
RJIA1718E
Terminal
Continuity (+) (-)
DISPLAY con-
nectorTerminal No.
(Wire color)Auto amp.
connectorTerminal No.
(Wire color)
M99 13 (L/R) M204 10 (L/R) Yes
Terminal
Continuity (+) (-)
AV AND NAVI
CONTROL
UNIT connec-
torTerminal No.
(Wire color)Auto amp.
connectorTerminal No.
(Wire color)
M96 43 (L/R) M204 10 (L/R) Yes
Page 2093 of 3189
CONTROLLER
ATC-113
C
D
E
F
G
H
I
K
L
MA
B
AT C
CONTROLLERPFP:27500
Removal and InstallationEJS00200
1. Remove cluster lid C. Refer to BT-25, "INSTRUMENT PANEL ASSEMBLY".
2. Remove harness connectors.
3. Remove multifunction switch.
Page 2094 of 3189
ATC-114
AUTO AMP
AUTO AMP
PFP:27760
REMOVAL AND INSTALLATIONEJS00201
1. Remove the instrument lower assist panel.
2. Remove the auto amp. fixing screw.
3. Disconnect the auto amp. connector, then remove the auto amp.
RJIA0190E
Page 2095 of 3189
AMBIENT SENSOR
ATC-115
C
D
E
F
G
H
I
K
L
MA
B
AT C
AMBIENT SENSORPFP:27722
Removal and InstallationEJS00202
1. Disconnect ambient sensor connector.
2. Remove the ambient sensor.
RJIA1712E
Page 2096 of 3189
ATC-116
IN-VEHICLE SENSOR
IN-VEHICLE SENSOR
PFP:27720
Removal and InstallationEJS00203
1. Remove the instrument lower driver panel.
2. Remove the in-vehicle sensor.
RJIA1719E