Suzuki Grand Vitara JB416 / JB420 / JB419. Manual — part 52
1A-155 Engine General Information and Diagnosis: For Petrol Engine Model
12 Wire circuit check
1) Measure voltage between “RED” wire terminal of
radiator cooling fan relay No.2 connector and vehicle
body ground with ignition switch turned ON.
Is voltage 0 V?
Go to Step 13.
“RED” wire is shorted to
other circuit.
13 Wire circuit check
1) Measure resistance between “RED” wire terminal of
radiator cooling fan relay No.2 connector and “E23-47”
terminal of ECM connector with ignition switch turned
OFF.
Is resistance below 2
Ω
?
Go to Step 20.
“RED” wire is open
circuit.
14 Wire circuit check
1) Disconnect connectors from ECM with ignition switch
turned OFF.
2) Measure voltage between “E23-48” terminal of ECM
connector and vehicle body ground with ignition switch
turned ON.
Is voltage 10 – 14 V?
Go to Step 15.
Go to Step 16.
15 Radiator cooling fan control No.3 check
1) Connect connectors to ECM with ignition switch turned
OFF.
2) Run engine until ECT is over 102.5
°C, 216.5 °F.
3) Measure voltage between “E23-48” terminal of ECM
connector and vehicle body ground.
Is voltage below 1.5 V?
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
Substitute a known-
good ECM and recheck.
16 Wire circuit check
1) Disconnect radiator cooling fan relay No.3 (1) from relay
box (2) with ignition switch turned OFF.
2) Turn ON ignition switch.
3) Measure voltage between “YEL/GRN” wire terminal of
radiator cooling fan relay No.3 connector and vehicle
body ground.
Is voltage 10 – 14 V?
Go to Step 17.
“YEL/GRN” wire is open
circuit.
17 Wire circuit check
1) Measure resistance between “RED/YEL” wire terminal of
radiator cooling fan relay No.3 connector and vehicle
body ground with ignition switch turned OFF.
Is resistance infinity?
Go to Step 18.
“RED/YEL” wire is
shorted to ground
circuit.
Step
Action
Yes
No
1
2
I5JB0A110059-02
Engine General Information and Diagnosis: For Petrol Engine Model 1A-156
DTC P0500: Vehicle Speed Sensor (VSS) Malfunction
S6JB0A1114051
Wiring Diagram
DTC Detecting Condition and Trouble Area
18 Wire circuit check
1) Measure voltage between “RED/YEL” wire terminal of
radiator cooling fan relay No.3 connector and vehicle
body ground with ignition switch turned ON.
Is voltage 0 V?
Go to Step 19.
“RED/YEL” wire is
shorted to other circuit.
19 Wire circuit check
1) Measure resistance between “RED/YEL” wire terminal of
radiator cooling fan relay No.3 connector and “E23-48”
terminal of ECM connector with ignition switch turned
OFF.
Is resistance below 5
Ω
?
Go to Step 20.
“RED/YEL” wire is open
circuit
20 Radiator cooling fan relay check
1) Check radiator cooling fan relay referring to “Radiator
Cooling Fan Relay Inspection: For Petrol Engine Model
in Section 1F”.
Is it in good condition?
Substitute a known-
good ECM and recheck.
Replace relay.
Step
Action
Yes
No
E23-4
E23-19
WHT/RED
WHT/BLU
WHT/RED
WHT/BLU
E23
C37
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
BLK
WHT
BLK
WHT
YEL/BLK
YEL
LT GRN
LT GRN/BLK
12V
12V
1
2
3
4
I5JB0A110060-03
1. Rear left side wheel speed sensor (VSS 1)
3. ABS / ESP
® control module
2. Rear right side wheel speed sensor (VSS 2)
4. ECM
DTC detecting condition
Trouble area
Vehicle speed signal is not input while fuel is cut at
deceleration for 4 seconds continuously at 3600 rpm or less.
(2 driving cycle detection logic)
• Wheel speed sensor (VSS)
• Wheel speed sensor circuit
• ABS / ESP
® control module
• ECM
1A-157 Engine General Information and Diagnosis: For Petrol Engine Model
DTC Confirmation Procedure
WARNING
!
• When performing a road test, select a place where there is no traffic or possibility of a traffic
accident and be very careful during testing to avoid occurrence of an accident.
• Road test should be carried out by 2 persons, a driver and a tester.
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC using scan tool.
3) Warm up engine to normal operating temperature.
4) Drive vehicle at 4000 rpm (engine speed) with 3rd gear (for M/T vehicle) or “3” range (for A/T vehicle).
5) Release accelerator pedal and with engine brake applied, keep vehicle coasting for 6 sec. or more (fuel cut
condition for 5 sec. or more) and stop vehicle.
6) For A/T model, drive vehicle at more than 3700 rpm for 10 sec.
7) Check pending DTC and DTC.
DTC Troubleshooting
NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting: For Petrol Engine Model”.
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: For
Petrol Engine Model”.
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 / ESP
® control module
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check ABS / ESP
® control module for DTC.
Is there any DTDC(s) in ABS / ESP
®
control module?
Go to applicable DTC
diag. flow.
Substitute a known-
good ECM and recheck.
Engine General Information and Diagnosis: For Petrol Engine Model 1A-158
DTC P0504: Brake Switch “A”/“B” Correlation (For J20 Engine)
S6JB0A1114052
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool to DLC.
2) Turn ON ignition switch and clear DTC.
3) Start engine and warm up to normal operating temperature. (ECT approx. 90 – 95
°C, 194 – 203 °F)
4) Drive vehicle at 50 km/h (80 mph) or higher for 3 min. or more.
5) Stop vehicle.
6) Depress brake pedal for 3 times.
7) Check DTC and pending DTC.
E23
C37
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
BLK/YEL
WHT/GRN
GRN/WHT
E23-20
GRN/WHT
GRN
12V
E23-8
BLU/BLK
WHT
YEL/GRN
1
3
2
4
5
6
7
I5JB0A110107-02
1. Stop lamp (brake pedal) switch
3. Brake pedal switch
5. Stop lamp
7. “STOP” fuse
2. Stop lamp switch
4. ECM
6. “CRUISE” fuse
DTC detecting condition
Trouble area
Brake pedal switch signal is inconsistent with stop lamp
switch signal.
(1 driving cycle detection logic but MIL does not light up)
• Stop lamp (brake pedal) switch and/or its circuit
• ECM
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