Suzuki SX4 Service Manual page 1605
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Also See for SX4:
- Owner's manual (47 pages) ,
- Owner's manual (18 pages) ,
- Owner's manual (278 pages)
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Reference waveform No. 5
Information display and HVAC control module serial
communication signal (1)
Measurement terminal CH2: "G04-11" to "G271-3"
Oscilloscope setting
CH2: 5 V / DIV
TIME: 2 ms / DIV
Measurement
Ignition switch is at ON position
condition
Reference waveform No. 6
Keyless entry receiver signal (1)
Measurement terminal CH2: "G04-14" to "G271-3"
Oscilloscope setting
Measurement
condition
Reference waveform No. 7
Vehicle speed pulse output signal (1)
Measurement terminal CH1: "G04-15" to "G271-3"
Oscilloscope setting
CH1: 2 V / DIV
TIME: 100 ms / DIV
Measurement
Vehicle speed at 10 km/h (6
condition
mph)
I4RS0AA20021-02
CH2: 2 V / DIV
TIME: 200 ms / DIV
Lock or unlock button of
keyless entry transmitter is
pushed
I4RS0AA20022-02
Body Electrical Control System:
Reference waveform No. 8
A/C or rear end door window / back window defogger
switch signal (1)
Measurement terminal Rear end door window / back
Oscilloscope setting
Measurement
condition
10B-28
I5RW0AA20014-01
window defogger switch
CH2: "G04-17" to "G271-3"
A/C switch
CH2: "G04-18" to "G271-3"
CH2: 5 V/DIV
TIME: 10 ms/DIV
Rear end door window / back
window defogger switch:
• Ignition switch is at ON
position and rear end door
window / back window
defogger switch is not
pushed
A/C switch:
• Ignition switch is at ON
position, A/C switch or
blower speed selector is at
OFF position
I4RS0AA20023-02
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Troubleshooting
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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.
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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.
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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