Ecm Power And Ground Circuit Check - Suzuki SX4 Service Manual

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1A-194 Engine General Information and Diagnosis:

ECM Power and Ground Circuit Check

Wiring Diagram
WHT
2
GRN
BLK/YEL
WHT
7
8
9
1
15
14
13
12
11
30
28
27
26
29
45
44
43
42
41
59
60
58
57
56
1. Main fuse box
2. Ignition switch
3. Main relay
4. BCM (included in junction block assembly)
5. "IG COIL" fuse
6. ECM
Circuit Description
When the ignition switch is turned ON, the main relay turns ON (the contact point closes) and the main power is
supplied to ECM.
4
11
10
5
3
BLK/YEL
BLK/YEL
12
13
14-1
14-2
15-1
15-2
E01
10
9
8
7
6
5
4
3
25
24
23
22
21
20
19
18
40
39 38
37
36
35
34
33
55
54 53
52
51
50
49
48
7. Individual circuit fuse box No.1
8. "IGN" fuse
9. "FI" fuse
10. "DOME" fuse
11. DLC
12. MAP sensor (if equipped)
WHT/RED
BLK/WHT
BRN/WHT
BLK/RED
BLK/RED
BLK/RED
GRY/RED
RED/BLK
RED/BLU
ORN
GRY/BLU
GRN
BLU
RED
YEL
WHT
BLK
BLU
YEL
RED
GRN
WHT
BLK
GRY
2
1
15
14
13
12
11
17
16
30
28
27
26
29
32 31
45
44
43
42
41
59
47 46
60
58
57
56
13. A/C refrigerant pressure sensor (if equipped with A/C)
14-1. APP sensor (main)
14-2. APP sensor (sub)
15-1. TP sensor (main)
15-2. TP sensor (sub)
6
E01-2
E01-29
C01-58
BLK/ORN
C01-15
BLK
C01-30
BLK
E01-60
E01-31
BLK
12V
5V
E01-1
E01-16
C01-14
C01-53
E01-55
E01-54
C01-55
E01-35
E01-37
E01-52
E01-34
E01-36
E01-51
E01-50
C01-45
C01-44
C01-43
C01-54
C01-40
C01-42
C01-41
C01
10
9
8
7
6
5
4
3
25
24
23
22
21
20
19
18
40
39 38
37
36
35
34
33
55
54 53
52
51
50
49
48
S7RW0A1104077
2
1
17
16
32 31
47 46
I6RW0D110052-01

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Questions and answers

Gawthorpe
February 27, 2025

Adjust throttle motor

1 comments:
Mr. Anderson
February 27, 2025

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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Adetunji Ismail
March 4, 2025

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,

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paul murphy
March 19, 2025

My heater stopped working the blower **** is good, control unit ?

1 comments:
Mr. Anderson
March 19, 2025

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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ادیک ابرامی
April 21, 2025

دلایل بالا رفتن مصرف بنزین در مدل اتومات

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jack wrona
March 6, 2025

increasing revs when changing gears

1 comments:
Mr. Anderson
March 6, 2025

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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