Suzuki GRAND VITARA Owner's Manual page 1124

7B-15 Air Conditioning System:
DTC (indicated on HVAC
DTC No.
Indicated by
(displayed on
SUZUKI scan tool)
indicator
B1511
B1513
B1512
B1514
B1530
B1531
B1551
B1552
B1553
B1557
B1556
B1563
B1546
B1520
B1521
—
NOTE
When no abnormality is detected, "FRE" indicator lamp and "REC" indicator lamp repeat cycle of ON
for 2 seconds and OFF for 1 second.
control module)
Indicated by
"REC" "FRE"
indicator
lamp lamp
1
2
6
3
1
2
7
3
1
2
8
3
1
9 2
4
10 4
11 4
12 4
4
13
5
1
15
2
1
16
2
See NOTE below
Priority
of
display
8 Temperature control actuator (position
9 sensor) and/or its circuit malfunction
Temperature control actuator and/or its
10
circuit malfunction
11 Air flow control actuator (position sensor)
12 and/or its circuit malfunction
Air flow control actuator and/or its circuit
13
malfunction
14 Air intake control actuator (position
15 sensor) and/or its circuit malfunction
Air intake control actuator and/or its circuit
16
malfunction
17
18 Serial communication circuit malfunction
19
20 CAN communication circuit malfunction
Wheel speed sensor and/or its circuit
21
malfunction
Camshaft position (CMP) sensor and/or its
22
circuit malfunction
A/C refrigerant pressure sensor and/or its
23
circuit malfunction
A/C refrigerant pressure sensor
24
malfunction
25
Temperature selector malfunction
26
27
Blower speed selector malfunction
28
— Normal
Diagnosis
Open
Short
Lock detect
Open
Short
Lock detect
Open
Short
Lock detect
Open
Short
Data error
Data error
Data error
Data error
Data error
Refrigerant
pressure
malfunction
Open
Short
Open
Short
—