Dtc P0122 / P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit Low / High - Suzuki 2006 SX4 Service Manual

Step
4 ECT sensor check
1) Check ECT sensor for performance referring to "Engine
Coolant Temperature (ECT) Sensor Inspection in
Section 1C".
Is it in good condition?

DTC P0122 / P0123: Throttle / Pedal Position Sensor / Switch "A" Circuit Low / High

Wiring Diagram
GRN
BLK/YEL
13
WHT
11 10 9
8
15 14 13 12 11
30 28 27 26
29
45 44 43 42 41
59
60 58 57 56
A1: TP sensor power supply circuit
A2: TP sensor (main) signal circuit
A3: TP sensor (sub) signal circuit
A4: TP sensor ground circuit
B1: Power supply circuit of throttle actuator control relay (switch side)
B2: Control circuit of throttle actuator control relay (switch side)
B3: Power supply circuit of throttle actuator control relay (coil side)
B4: Control circuit of throttle actuator control relay (coil side)
Action
12
7
BLK/YEL
BLK/YEL
BLK/RED
5
B3
GRY
B1
1
2
3
4
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
Engine General Information and Diagnosis:
Substitute a known-
good ECM and recheck.
BLK/WHT
BRN/WHT
BLK/RED BLK/RED
BLK/RED
B4
BRN
GRN
B2
C1
BLU
YEL
C2
A1
RED
A2
GRN
A3
WHT
A4
BLK
BLK
2 1 15 14 13 12 11
17 16 30 28 27 26
29
32 31 45 44 43 42 41
59
47 46 60 58 57 56
C1: Control circuit of throttle actuator (+)
C2: Control circuit of throttle actuator (–)
1. Electric throttle body assembly
2. Throttle actuator
3. TP sensor (main)
4. TP sensor (sub)
5. Throttle actuator control relay
6. ECM
Yes
Replace ECT sensor.
6
E01-29
C01-15 BLK
C01-30 BLK
C01-29
BLK
E01-60
C01-48 BLK/ORN
C01-58 BLK/ORN
12V
E01-1
5V
E01-16
E01-50
E01-17
C01-45
C01-44
C01-53
C01-54
C01-40
C01-41
C01-33
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
7. Main relay
8. Fuse Box No.2
9. "THR MOT" fuse
10. "FI" fuse
11. "IGN" fuse
12. "IG COIL" fuse
13. Ignition switch
1A-71
No
S6RW0C1104023
2 1
17 16
32 31
47 46
I7RW01110050-03