Inspection Of Drl Controller And Its Circuits (If Equipped) - Suzuki SX4 Service Manual
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Also See for SX4:
- Owner's manual (47 pages) ,
- Owner's manual (16 pages) ,
- Owner's manual (278 pages)
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9B-14 Lighting Systems:
Inspection of DRL Controller and Its Circuits (If Equipped)
1) Confirm that lighting switch is in good condition referring to "Headlight Switch (in Lighting Switch) Inspection".
2) Confirm that oil pressure switch is in good condition referring to "Oil Pressure Switch Inspection in Section 9C".
3) Remove glove box.
4) Remove DRL controller (1) from steering support member.
5) Connect connector to DRL controller.
6) Check that the voltage between the following terminals and vehicle body ground are specifications under each
condition.
7) Check that voltage between the following terminals and body ground are as specification under each condition.
If measuring voltage is not within specification, check applicable circuit for open or short. If circuits are normal,
replace DRL controller.
If measuring voltage is within specification, DRL controller and its circuits are good condition.
[A]: DRL controller connector viewed from harness side
Terminal
Circuit
1
To clearance lamp
2
To ignition switch
To lighting switch
3
(CLEARANCE)
4
Ground
5
Ground
6
To head lamp
7
To oil pressure switch
8
Main fuse
9
To lighting switch (HEAD)
1
1
Specification
0 – 1 V
10 – 14 V
0 – 1 V
10 – 14 V
0 – 1 V
10 – 14 V
0 – 1 V
0 – 1 V
0 – 1 V
10 – 14 V
8 – 10 V
0 – 1 V
10 – 14 V
6 – 8 V
0 – 1 V
[A]
Condition
Engine is at stop and lighting switch is at OFF position.
Engine is at running and lighting switch is at OFF position.
Ignition switch is at OFF position.
Ignition switch is at ON position.
Lighting switch is at OFF position.
Lighting switch is at CLEARANCE position or HEAD
position.
• Lighting switch is at HEAD position and dimmer switch
is at LOW position.
• Engine is running and lighting switch is at OFF position.
Lighting switch is at HEAD position and dimmer switch is
at HI position.
Engine is at running (Oil pressure warning lamp is turned
OFF).
Engine is at stop.
• Engine is at running and lighting switch is at OFF
position.
• Engine is running and lighting switch is CLEARANCE
position.
• Engine is at running and dimmer switch is at HEAD
position.
• Engine is at stop.
S7RW0A9204018
5 4 3 2 1
10 9 8 7
6
V
I5RW0A920003-01
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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,
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.
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دلایل بالا رفتن مصرف بنزین در مدل اتومات
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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