Suzuki SX4 Service Manual page 1045
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Also See for SX4:
- Owner's manual (47 pages) ,
- Owner's manual (18 pages) ,
- Owner's manual (278 pages)
Table of Contents
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DTC No.
(displayed
Detection item
on SUZUKI
scan tool)
Temperature
Control Actuator
B1513
(Motor) and/or Its
Circuit
Malfunction
Air Flow Control
Actuator (Motor)
B1514
and/or Its Circuit
Malfunction
Temperature
B1520
Selector
Malfunction
Blower Speed
B1521
Selector
Malfunction
Air Flow Selector
B1522
Malfunction
Back-up Power
B1541
Supply Circuit
Malfunction
A/C Refrigerant
B1546
Pressure
Malfunction
Serial
Communication
B1551
Circuit
Malfunction
HVAC Control
B1552
Module Check
Sum Error
CAN
Communication
B1553
Circuit
Malfunction
VSS Signal
B1557
Failure
ECT signal
B1561
Failure
Outside
Temperature
B1562
Sensor Signal
Failure
A/C Refrigerant
B1563
Pressure Sensor
Signal Failure
DTC (indicated on
HVAC control
module)
Indicated
Indicated
determined when following condition detected)
by "REC"
by "FRE"
indicator
indicator
light
light
Motor of temperature control actuator is not
6
3
operated more than specified time.
Motor of air flow control actuator is not operated
7
3
more than specified time.
Signal voltage of temperature selector in HVAC
15
1
control module is higher than specification.
Signal voltage of temperature selector in HVAC
15
2
control module is lower than specification.
Signal voltage of blower speed selector in HVAC
16
1
control module is higher than specification.
Signal voltage of blower speed selector in HVAC
16
2
control module is lower than specification.
Signal voltage of airflow selector in HVAC control
17
1
module is higher than specification.
Signal voltage of airflow selector in HVAC control
17
2
module is lower than specification.
• Back-up power supply voltage of HVAC control
14
1
• When connect battery with vehicle and then,
• Signal voltage of outside air temperature sensor
13
5
• Insufficient refrigerant in A/C system.
Circuit voltage of serial communication circuit is
9
1
higher than specification.
Circuit voltage of serial communication circuit is
9
2
lower than specification.
HVAC control module received unspecified data
9
4
from BCM more than 8 times.
HVAC control module received signal indicating
10
4
reception error from ECM.
HVAC control module receives invalid data of VSS
11
4
signal from BCM.
HVAC control module receives invalid data of ECT
5
4
signal from BCM.
HVAC control module receives invalid data of
1
4
outside air temperature sensor signal from BCM.
HVAC control module receives invalid data of A/C
13
4
refrigerant pressure sensor signal from BCM.
Air Conditioning System: Automatic Type 7B-51
Condition when trouble detected (DTC is
module is higher than or lower than
specification.
turn ignition switch to ON position for first time.
is more than specified value. However, A/C
refrigerant pressure is less than specified value.
"A/C"
indicator
light
Flashed
Flashed
Flashed
Flashed
Flashed
Flashed
Flashed
Flashed
—
—
Flashed
Flashed
Flashed
Flashed
—
Flashed
Flashed
—
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Chapters
Table of Contents
Troubleshooting
Need help?
Do you have a question about the SX4 and is the answer not in the manual?
Questions and answers
Adjust throttle motor
The idle speed on a Suzuki SX4 should be controlled by the Idle Air Control Valve (IACV) rather than adjusting the idle screw on the throttle body, as the screw is factory set. Before using compressed air in the idle-air-bypass passages, the IACV should be removed to prevent damage to its delicate mechanism. If there is an issue with idle speed, checking the IACV function and referring to the SX4 service manual is recommended.
This answer is automatically generated
I have an issue of crank but not starting When I scan it brought this codeU0100 Which means no communication thou crank sensor wire was cut off but it was fix back What could be wrong and what could be the solution,
increasing revs when changing gears
The Suzuki SX4 may have increasing revs when changing gears due to its drive-by-wire system and the difference in final drive ratios between the manual (4.41) and automatic (2.81) transmissions. This difference causes high cruising RPMs in the manual version and sluggishness in the automatic. Additionally, if the revs climb while going uphill, it may be due to the transmission downshifting or kicking out of overdrive. Other possible causes include low transmission fluid, abuse, or a faulty transmission design.
This answer is automatically generated
My heater stopped working the blower **** is good, control unit ?
Possible issues with the heater in a Suzuki SX4 if the blower is working but the heater is not include:
1. Incorrect Temperature Output
- Temperature control cable broken or bent (non-A/C and manual A/C) → Check the temperature control cable.
- Temperature selector faulty (non-A/C and manual A/C) → Check the temperature selector.
- Incorrect installation of the temperature control cable (non-A/C and manual A/C) → Check and adjust the position as necessary.
- Temperature control door assembly broken → Repair the temperature control door assembly.
- Air ducts clogged → Repair air ducts.
- Heater core leaked or clogged → Replace the heater core.
- Heater hoses leaked or clogged → Replace heater hoses.
- Thermostat faulty → Check the thermostat.
- Temperature control actuator faulty (auto A/C) → Check the temperature control actuator.
- HVAC control module faulty (auto A/C) → Check the HVAC control module.
- Wiring or grounding faulty (auto A/C) → Repair as necessary.
2. Other Possible Causes
- Air flow control cable broken or bent → Check the air flow control cable.
Checking and addressing these components should help identify and resolve the heater issue.
This answer is automatically generated