Suzuki Grand Vitara JB627. Manual — part 52
1A-157 Engine General Information and Diagnosis:
DTC P2135: Throttle Position Sensor (Main / Sub) Voltage Correction
S6JB0B1104065
Wiring Diagram
6
APP sensor check
1) Check APP sensor for performance referring to
“Accelerator Pedal Position (APP) Sensor Assembly On-
Vehicle Inspection in Section 1C”.
Is it in good condition?
Substitute a known
good ECM and recheck.
Replace APP sensor
assembly.
Step
Action
Yes
No
BLU/BLK
BLU/BLK
BLU/BLK
BLK/RED
BLK/RED
BLK/RED
BLU
12V 5V
E23-8
E23-16
E23-2
E23-3
WHT/GRN
C37-59
C37-58
C37-39
C37-73
C37-80
BLK/YEL
BLK/ORN
BLK/ORN
BLK/YEL
BLK/YEL
1
3 2
4
5
6
7
8
9
1110
12
13
14
15
16
17
18
19
20
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
33
34
35
36
37
38
39
40
32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
E23
C37
BLK/ORN
C37-81
BLK/YEL
BLK/WHT
BLU/ORN
GRN
BLU/YEL
BLU/RED
BLU/BLK
E23-6
E23-7
E23-5
E23-4
C37-45
C37-46
C37-65
C37-64
BLU/RED
WHT
GRN
RED
BLK
8
11 10 9
13
12
7
5
2
1
4
3
6
C1
S1
S2
C2
I6JB01110056-05
1: Electric throttle body assembly
6: ECM
11: “IGN” fuse
2: Throttle actuator
7: Main relay
12: “IG COIL” fuse
3: Throttle position sensor (main)
8: Fuse box No.2
13: Ignition switch
4: Throttle position sensor (sub)
9: “THR MOT” fuse
5: Throttle actuator control relay
10: “FI” fuse
Engine General Information and Diagnosis: 1A-158
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC by using scan tool if any.
3) Keep the accelerator pedal at idle position for 2 seconds.
4) Keep the accelerator pedal at fully depressed position for 2 seconds.
5) Repeat Step 3) and 4) for 3 times.
6) Check DTC by using scan tool.
DTC Troubleshooting
DTC detecting condition
Trouble area
Index of correlation between main throttle position sensor and sub
throttle position sensor (main throttle position sensor voltage plus sub
throttle position sensor voltage minus 4.9 V) is more than 0.2 V.
(1 driving cycle detection logic)
• TP sensor (main and sub) circuit
• Electric throttle body assembly
• ECM
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
TP sensor and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check “TP Sensor 1 Volt” and
“TP Sensor 2 Volt” displayed on scan tool when
accelerator pedal is idle position and fully depressed.
Is displayed TP sensor value as described voltage in “Scan
Tool Data”?
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
Go to Step 3.
3
TP sensor check
1) Check TP sensor for performance referring to “Electric
Throttle Body Assembly On-Vehicle Inspection in
Section 1C”.
Is it in good condition?
Go to Step 4.
Replace electric throttle
body assembly.
4
Wire harness check
1) Check TP sensor (main and sub) circuit for condition.
For TP sensor (main) circuit, referring to Step 3 of “DTC
P0122 / P0123: Throttle Position Sensor (Main) Circuit
Low / High Input”.
For TP sensor (sub) circuit, referring to Step 3 of “DTC
P0222 / P0223: Throttle Position Sensor (Sub) Circuit
Low/High”.
Is it in good condition?
Substitute a known
good ECM and recheck.
Repair or replace.
1A-159 Engine General Information and Diagnosis:
DTC P2138: Pedal Position Sensor (Main / Sub) Voltage Correction
S6JB0B1104066
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1) With ignition switch turned OFF, connect scan tool.
2) Turn ON ignition switch and clear DTC by using scan tool if any.
3) Keep the accelerator pedal at idle position for 2 seconds.
4) Keep the accelerator pedal at fully depressed position for 2 seconds.
5) Repeat Step 3) and 4) for 3 times.
6) Check DTC by using scan tool.
1
3 2
4
5
6
7
8
9
1110
12
13
14
15
16
17
18
19
20
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
33
34
35
36
37
38
39
40
32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
E23
C37
E23-26
E23-27
5 V
WHT/BLU
ORN
1
2
5
4
3
5 V
E23-25
WHT
E23-33
E23-34
E23-35
ORN/BLU
BLU/GRN
BLU/YEL
P
S
G
P1
S1
G1
I6JB01110061-02
P: APP sensor (main) power supply circuit
S1: APP sensor (sub) signal circuit
3: APP sensor (sub)
S: APP sensor (main) signal circuit
G1: APP sensor (sub) ground circuit
4: ECM
G: APP sensor (main) ground circuit
1: APP sensor assembly
5: Ground of APP sensor for shield wire
P1: APP sensor (sub) power supply circuit
2: APP sensor (main)
DTC detecting condition
Trouble area
Index of correlation between the main accelerator pedal position sensor and
sub accelerator pedal position sensor (1/2 main accelerator pedal position
sensor voltage minus sub accelerator pedal position sensor voltage) is more
than 0.28 V.
(1 driving cycle detection logic)
• APP sensor and its circuit
• ECM
Engine General Information and Diagnosis: 1A-160
DTC Troubleshooting
NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to
“Precautions for DTC Troubleshooting”.
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
TP sensor and its circuit check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ON ignition switch, check “APP Sensor 1 Volt” and
“APP Sensor 2 Volt” displayed on scan tool when
accelerator pedal is idle position and fully depressed.
Is displayed each APP sensor value as described voltage in
“Scan Tool Data”?
Intermittent trouble.
Check for intermittent
referring to “Intermittent
and Poor Connection
Inspection in Section
00”.
Go to Step 3.
3
APP sensor check
1) Check APP sensor for performance referring to
“Accelerator Pedal Position (APP) Sensor Assembly On-
Vehicle Inspection in Section 1C”.
Is it in good condition?
Go to Step 4.
Replace APP sensor
assembly.
4
Wire harness check
1) Check APP sensor (main and sub) circuit for condition.
For APP sensor (main) circuit, referring to Step 4 of
“DTC P2122 / P2123: Pedal Position Sensor (Main)
Circuit Low / High”.
For TP sensor (sub) circuit, referring to Step 4 of “DTC
P2127 / P2128: Pedal Position Sensor (Sub) Circuit Low
/ High”.
Is it in good condition?
Substitute a known
good ECM and recheck.
Repair or replace.
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