Suzuki GRAND VITARA Owner's Manual page 1122

7B-13 Air Conditioning System:
DTC Check
NOTE
To know how to use SUZUKI scan tool in
detail, refer to its operator's manual.
Using SUZUKI Scan Tool
1) Turn ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector
(DLC) (1) located on underside of instrument panel.
Special tool
(A): SUZUKI scan tool
(A)
3) Apply light to sunload sensor vertically, holding
incandescent lamp of approximately 100 W about
100 mm (3.94 in.) away from sunload sensor.
NOTE
If B1504 is detected when vehicle is not
exposed to light (indoor, etc.), check again
for DTC with light from incandescent lamp
applied to sunload sensor, referring to
"Sunload Sensor Inspection: ". If B1504 is
not detected in this check, sunload sensor is
in good condition.
4) Turn ignition switch to ON position.
5) Read DTC according to instructions displayed on
SUZUKI scan tool and print it or write it down. Refer
to SUZUKI scan tool operator's manual for further
details.
If communication between scan tool and ECM
(PCM) is not possible, check if scan tool is
communicable by connecting it to ECM (PCM) in
another vehicle. If communication is possible in this
case, scan tool is good condition. Then check data
link connector and serial data line (circuit) in the
vehicle with which communication was not possible.
6) After completing the check, turn ignition switch OFF
position and disconnect SUZUKI scan tool from data
link connector (DLC).
Not Using SUZUKI Scan Tool
S5JB0A7204028
1
I5JB0A720014-01
NOTE
If B1504 is detected when vehicle is not
exposed to light (indoor, etc.), check again
for DTC with light from incandescent lamp
applied to sunload sensor, referring to
"Sunload Sensor Inspection: ". If B1504 is
not detected in this check, sunload sensor is
in good condition.
1) Apply light to sunload sensor vertically, holding
incandescent lamp of approximately 100 W about
100 mm (3.94 in.) away from sunload sensor.
2) Set the following selectors to specified positions
respectively with turn ignition switch OFF.
• Temperature selector (1): max cool position
• Blower speed selector (2): "OFF" position
3) While pressing "B/L" (BI-LEVEL) switch (3) and "D/F"
(defogger foot) switch (4) simultaneously turn
ignition switch to ON position.
NOTE
For 15 seconds after ignition switch is turned
on, both "REC" indicator lamp and "FRE"
indicator lamp light for in-system trouble
check.
4) Read DTC from flashing pattern of "FRE" indicator
(5) and "REC" indicator (6) referring to "DTC Table: ".
NOTE
• Pressing "DEF" switch (7) alternates
display of current DTC and history DTC.
• "DEF" indicator lamp (8) remains off when
display is in current DTC mode and it lights
up when display is in history DTC mode.
8
1
4
7
2
3
6
5
I5JB0A720015-01