Fail-Safe Table - Suzuki Swift Sport 2004 Service & Repair Manual

DTC
DTC No. (indicated
Priority of
(displayed on
on display of
SUZUKI HVAC
scan tool) control
module)
B1562 14
B1563 d4
See NOTE
below
(current
—
DTC)
00 (history
DTC)
NOTE
When no current DTC is detected, all contents displayed on display (1) of HVAC control module and
defroster indicator (2) flash at the same time.

Fail-Safe Table

When any of the following malfunctions (DTCs) is detected, fail-safe mode is activated.
However, when HVAC control module detects normal operation of A/C system, fail-safe mode is cancelled.
DTC No. Trouble Area
Inside air temperature sensor and/
B1502 or its circuit
A/C evaporator temperature sensor
B1503 and its circuit
Sunload sensor and/or its circuit
B1504
Serial communication circuit
B1551
Serial communication circuit
B1552
CAN communication circuit
B1553
Vehicle speed sensor and/or its
B1557 circuit
Engine coolant temperature sensor
B1561 and/or its circuit
Outside air temperature sensor
B1562 and/or its circuit
Priority
of
display
display
(current
(history
DTC)
DTC)
18 18 Outside air temperature sensor signal malfunction
20 19 A/C refrigerant pressure sensor signal malfunction
— — Normal
HVAC control module controls actuators assuming that inside air
temperature is 25 °C (77 °F).
• HVAC control module turns off A/C switch signal.
• HVAC control module controls actuators assuming that evaporator
temperature is 0 °C (32 °F).
HVAC control module controls actuators assuming that amount of
sunlight is 0 W/m
HVAC control module controls actuators assuming that outside air
temperature is 20 °C (68 °F), engine coolant temperature is 80 °C
(176 °F), and vehicle speed is 40 km/h (25 mph).
HVAC control module controls actuators assuming that vehicle speed
is 40 km/h (25 mph).
HVAC control module controls actuators assuming that engine coolant
temperature is 80 °C (176 °F).
HVAC control module controls actuators assuming that outside air
temperature is 20 °C (68 °F).
Air Conditioning System: Automatic Type 7B-45
Diagnosis
2
1
Fail-Safe Operation
2 .
I5RS0A722009-01
"AUTO"
indicator
lamp
Flashed
—
—
S7RS0B7224006