Body Ventilation Construction; On-Board Diagnostic System Description - Suzuki GRAND VITARA Owner's Manual

7A-2 Heater and Ventilation:

Body Ventilation Construction

The body ventilation system of this vehicle has a fresh air intake (1) located at the cowl top panel. When fresh air
intake air selector is at FRE position (fresh), ventilating air is drawn into the interior from the cowl center garnish and
drawn out from the ventilator outlet (2) provided at each side body outer panel (both right and left side).
On-Board Diagnostic System Description (for
Vehicle without A/C)
HVAC control module (for vehicle without A/C) detects
malfunction, which may occur in the following area.
When HVAC control module detects any malfunction, the
REC (recirculation) indicator lamp (4) flashes on and off
continuously after turning ignition switch to ON position.
• ECT sensor
• CMP sensor
• Wheel speed sensor
• Temperature control actuator
• Air flow control actuator
• Air intake control actuator
• Temperature selector of HVAC control module
• Blower speed selector of HVAC control module
• Serial communication line
• CAN communication line
DTC can be checked by either one of the following ways.
• DTC can be checked by using SUZUKI scan tool (2)
connected to DLC (1).
• Without using SUZUKI scan tool, DTC can be
checked by reading the flashing pattern of both the
FRE (fresh) indicator lamp (3) and the REC
(recirculation) indicator lamp (4).
• Pressing DEF (defogger) switch (5) alternates display
of current DTC and history DTC.
• DEF indicator lamp (6) remains off when display is in
current DTC and it lights up when display is in history
DTC.
2
1
S5JB0A7101004
2
I5JB0A710002-03
5
6
4
1
2
S5JB0A7101002
3
I5JB0A710004-04