Dtc P2135: Throttle Position Sensor (Main / Sub) Voltage Correlation - Suzuki SX4 Service Manual

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1A-160 Engine General Information and Diagnosis:
Step
9
Ground circuit check
1) Remove ECM from its bracket with ECM connectors
connected.
2) Check for proper connection of ECM connector at "E01-
51" terminal.
3) If OK, measure resistance between "E01-51" terminal of
ECM connector and engine ground.
Is resistance below 5
10 APP sensor assembly check
1) Check APP sensor (sub) referring to "Accelerator Pedal
Position (APP) Sensor Assembly Inspection in Section
1C".
Is output voltage within specified value?

DTC P2135: Throttle Position Sensor (Main / Sub) Voltage Correlation

Wiring Diagram
GRN
BLK/YEL
10
WHT
7
5
6
8
15
14
13
12
11
30
29
28
27
26
44
45
43
42
41
60
59
58
57
56
1. Electric throttle body assembly
1-1. Throttle actuator
1-2. Throttle position sensor (main)
1-3. Throttle position sensor (sub)
2. Throttle actuator control relay
Action
?
9
4
BLK/YEL
BLK/YEL
BLK/RED
2
GRY
1
1-1
1-2
1-3
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
3. ECM
4. Main relay
5. Individual circuit fuse box No.1
6. "THR MOT" fuse
7. "FI" fuse
"WHT" wire is open or
high resistance circuit.
Substitute a known-
good ECM and recheck.
BLK/WHT
BRN/WHT
BLK/RED
BLK/RED
BLK/RED
BRN
GRN
BLU
YEL
RED
GRN
WHT
BLK
GRY
2
1
15
14
13
12
11
17
16
30
29
28
27
26
44
32 31
45
43
42
41
47 46
60
59
58
57
56
Yes
Faulty ECM ground
circuit. If circuit is OK,
substitute a known-
good ECM and recheck.
Replace APP sensor
assembly.
3
E01-29
C01-58
BLK/ORN
C01-15
BLK
C01-30
BLK
E01-60
E01-31
BLK
12V
5V
E01-1
E01-16
E01-45
E01-32
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
8. "IGN" fuse
9. "IG COIL" fuse
10.
Ignition switch
No
S7RW0A1104068
2
1
17
16
32 31
47 46
I6RW0D110049-02

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