Suzuki 2006 SX4, Service Manual

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1A-104 Engine General Information and Diagnosis:
DTC Troubleshooting
NOTE
Make sure that DTC of CAN communication is not detected by ECM.
DTC P0504: Brake Switch “A”/“B” Correlation
S6RW0C1104051
Wiring Diagram
Step Action Yes No
1 Was “Engine and Emission Control System Check”
performed? Go to Step 2. Go to “Engine and
Emission Control
System Check”.
2 Vehicle speed signal check
Is vehicle speed displayed on scan tool in Step 4) and 5) of
“DTC Confirmation Procedure”?
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”. Go to Step 3.
3 DTC check in ABS / EPS
®
control module
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check DTC in ABS control module.
Is there DTC(s) of front wheel speed sensor detected?
Go to applicable DTC
diag. Flow. Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”. If OK, substitute a
known-good ECM and
recheck.
E01 C01
3 4
18 19
5 6 7 10 11
17 20
47 46 49 50 51
21 22
52
16 25
9
24
14
29
55 57 54 53 59 60 58
2
26 27 28
15
30
56 48
32 31 34 35 36 37 40 42 39 38 44 45 43 41 33
1 12 13
23
8 3 4
18 19
5 6 7 10 11
17 20
47 46 49 50 51
21 22
52
16 25
9
24
14
29
55 57 54 53 59 60 58
2
26 27 28
15
30
56 48
32 31 34 35 36 37 40 42 39 38 44 45 43 41 33
1 12 13
23
8
GRN
WHT
GRN/WHT E01-20 GRN/WHT
GRN
12V
E01-8
GRY/RED
WHT
GRN/YEL
1
8
9
3
2
4
5
6
7
A2
A1
B1
B2
I7RW01110070-02
A1: Power supply circuit of brake pedal switch 1. Brake switch 5. Brake light 9. “IGN” fuse
A2: Control circuit of brake pedal switch 2. Brake light switch 6. “IG1 SIG” fuse
B1: Power supply circuit of brake light switch 3. Brake pedal switch 7. “STOP” fuse
B2: Control circuit of brake light switch 4. ECM 8. Ignition switch