2006 SUZUKI SX4 G04-15

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Page 884 of 1556

SUZUKI SX4 2006 1.G Service Workshop Manual Downloaded from www.Manualslib.com manuals search engine 6C-4 Power Assisted Steering System:
Schematic and Routing Diagram
EPS System Wiring Circuit DiagramS6RW0D6302001
[A]
123
45
3 21
4
567
8
9 11

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SUZUKI SX4 2006 1.G Service Workshop Manual Downloaded from www.Manualslib.com manuals search engine 6C-22 Power Assisted Steering System:
DTC C1121 / C1123 / C1124: Vehicle Speed Signal Circuit FailureS6RW0D6304014
DTC C1121: No Vehicle Speed

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SUZUKI SX4 2006 1.G Service Workshop Manual Downloaded from www.Manualslib.com manuals search engine 6C-24 Power Assisted Steering System:
DTC C1122: Engine Speed SignalS6RW0D6304015
Wiring Diagram6Vehicle speed signal circuit check
1) With ig

Downloaded from www.Manualslib.com manuals search engine 6C-24 Power Assisted Steering System:
DTC C1122: Engine Speed SignalS6RW0D6304015
Wiring Diagram6Vehicle speed signal circuit check
1) With ignition switch turned OFF, disconnect connectors
from BCM.
2) Check BCM connector for proper connection.
3) If OK, turn ON ignition switch, measure voltage between
“G04-15” or “G04-22” wire terminal of BCM connector
and body ground.
Is voltage 4 – 5 V?Go to Step 7. Go to Step 8.
7BCM voltage check
1) With ignition switch turned OFF, connect BCM
connector.
2) Check BCM for vehicle speed signal output referring to
“Inspection of P/S Control Module and Its Circuits”.
Is it in good condition?Replace P/S control
module.Replace BCM.
8Vehicle speed signal circuit check
1) Check that vehicle speed signal circuit is as follows.
• Insulation resistance of wire harness is infinity
between “Vehicle speed signal” terminal and other
terminal at P/S control module connector.
• Wiring harness resistance of “Vehicle speed signal”
circuit is less than 1Ω.
• Insulation resistance between “Vehicle speed signal”
circuit and vehicle body ground is infinity.
• Circuit voltage between “Vehicle speed signal” circuit
and ground circuit is 0 – 1 V with ignition switch turned
ON.
Is it in good condition?Replace P/S control
module.Repair or replace
defective circuit. Step Action Yes No
[A]
123
4567
8
9 11
10 12 13
141516
17 18 1920
1
2
[B]
BRN LT GRN/
BLK
E11-1
E11-12
E13-1 GRN
GRN
WHT
6
37
9
10
8
4 12
12V
E13-2BLK12V5
11
[C]E01-44E01-4
I6RW0D630004-01
[A]: P/S control module connector No.1 “E11” (viewed from harness side) 3. Junction block assembly 8. “IGN” fuse
[B]: P/S control module connector No.2 “E13” (viewed from harness side) 4. Main fuse 9. “P/S” fuse
[C]: M15A engine with 4A/T equipped with slip control model (Hong Kong model) 5. ECM 10. “IG1 SIG” fuse
1. Main fuse box 6. P/S control module 11. Engine speed signal circuit
2. Ignition switch 7. Individual circuit fuse box No.1

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SUZUKI SX4 2006 1.G Service Workshop Manual Downloaded from www.Manualslib.com manuals search engine Body Electrical Control System: 10B-4
BLK/BLU
BLK/YEL BLK/RED
12V
12V
+BB
BLU/YEL
WHT/BLU
+BB
RED/YEL G272-7
YEL/REDYEL/BLK
5V
IG1
IG2 IG2
L31

Page 1496 of 1556

SUZUKI SX4 2006 1.G Service Workshop Manual Downloaded from www.Manualslib.com manuals search engine 10B-23 Body Electrical Control System:
BCM connector “G04”E04-13 — — —
E04-14 — — —
Terminal Circuit Normal voltage Condition

Downloaded from www.Manualslib.com manuals search engine 10B-23 Body Electrical Control System:
BCM connector “G04”E04-13 — — —
E04-14 — — —
Terminal Circuit Normal voltage Condition
G04-1CAN communication line (low)
for DLC*1.6 – 2.5 V
Refer to “Reference waveform No. 3: ” G04-2CAN communication line (low)
for each control module*1.6 – 2.5 V
G04-3CAN communication line
(high) for DLC*2.5 – 3.6 V
G04-4CAN communication line
(high) for each control module*2.5 – 3.6 V
G04-5Serial communication line of
data link connector 7 – 12 V Ignition switch is at ON position
G04-6 — — —
G04-7 — — —
G04-8 Theft deterrent light10 – 14 V Theft deterrent light is not lit up
0 V Theft deterrent light is lit up
G04-9 — — —
G04-10 — — —
G04-11Serial communication line for
information display and HVAC
control module (if equipped)*0 – 1 V
↑↓
10 – 14 VRefer to “Reference waveform No. 5: ”
G04-12Ground for keyless entry
receiver (if equipped)0 V —
G04-13Power supply for keyless
entry receiver (if equipped)4 – 6 V Ignition switch is at all positions
G04-14Signal for keyless entry
receiver (if equipped)*0 – 1 V
↑↓
4 – 6 VRefer to “Reference waveform No. 6: ”
G04-15 Vehicle speed signal output*0 – 1 V
↑↓
4 – 6VRefer to “Reference waveform No. 7: ”
G04-16 Key reminder switch10 – 14 V Ignition key is inserted to ignition key cylinder
0 VIgnition key is pulled out from ignition key
cylinder
G04-17Rear end door window
defogger switch*3 – 14 V Refer to “Reference waveform No. 8: ”
0 VIgnition switch is at ON position and rear end
door window defogger switch is pushed
G04-18 A/C switch (if equipped)*3 – 14 V Refer to “Reference waveform No. 8: ”
0 VIgnition switch is at ON position, blower speed
selector is at any position other than OFF
position and A/C switch is at ON position
G04-19 — — —
G04-20 — — —
G04-21 Rear wiper INT switch*0 – 1 V
↑↓
10 – 14 VRefer to “Reference waveform No. 9: ”
0 VIgnition switch is at ON position and rear
wiper switch is at INT position
G04-22 Rear wiper low switch*0 – 1 V
↑↓
10 – 14 VRefer to “Reference waveform No. 9: ”
0 VIgnition switch is at ON position and rear
wiper switch is at LOW position Terminal Circuit Normal voltage Condition

Page 1500 of 1556

SUZUKI SX4 2006 1.G Service Workshop Manual Downloaded from www.Manualslib.com manuals search engine 10B-27 Body Electrical Control System:
Reference waveform No. 5
Information display and HVAC control module serial
communication signal (1)
R

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