A/C Evaporator Temperature Sensor; On-Board Diagnostic System Description - Suzuki GRAND VITARA Owner's Manual

7B-7 Air Conditioning System:

A/C Evaporator Temperature Sensor

Description
The A/C evaporator temperature sensor (1) is a
temperature sensor to sense the temperature of air
discharged from evaporator.
1
The electrical characteristic is shown.
(kΩ)
11.4
Resistance
3.9
3.3
When temperature is lower than specified, A/C controller
makes magnet clutch turn off to prevent evaporator from
frosting.

On-Board Diagnostic System Description

HVAC control module detects malfunction, which may
occur in the following area. When HVAC control module
detects any malfunction, the REC (recirculation)
indicator lamp (3) flashes on and off continuously after
turning ignition switch to ON position.
Abnormality exists (when air intake selector is operated
while "REC" indicator lamp is flashing), "FRE" indicator
lamp lights for 15 seconds and then "REC" indicator
lamp flashes.
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0 25 30 (˚C)
32 77 86 (˚F)
Temperature
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• Outside temperature sensor
• Inside temperature sensor
• Sunload sensor (Short circuit)
• Wheel speed sensor
• CMP sensor
• CAN communication line
• Serial communication line
• A/C evaporator temperature sensor
• ECT 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
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 air) indicator lamp (3) and the REC
(recirculation) indicator lamp (4).
• Current DTC and history DTC by pushing DEF
(defogger) switch (5) when DTC displayed by HVAC
control module.
• History DTC is such DTC which HVAC control module
saves in its memory when it detects current DTC for
60 seconds or more continuously.
• During indication of current DTC, DEF (defogger)
indicator lamp (6) is OFF. However DEF indicator
lamp (6) is ON during indication of history DTC.
6
2
5
4 3
1
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