Suzuki SFV650 - DTC C29 (P1654-H;L): Secondary Throttle Position Sensor (STPS) Circuit Malfunction

1A-73 Engine General Information and Diagnosis:
DTC “C29” (P1654-H/L): Secondary Throttle Position Sensor (STPS) Circuit Malfunction
B944H11104019
Detected Condition and Possible Cause
Wiring Diagram
ECM coupler (Harness side)
Troubleshooting
CAUTION
!
When using the multi-circuit tester, do not strongly touch the terminal of the ECM coupler with a
needle pointed tester probe to prevent terminal damage.
NOTE
After repairing the trouble, clear the DTC using SDS tool. Refer to “Use of SDS Diagnosis Reset
Procedures (Page 1A-15)”.
Detected Condition Possible Cause
C29
Output voltage is not within the following
range.
0.1 V ≤ Sensor voltage < 4.8 V
• STP sensor maladjusted.
• STP sensor circuit open or short.
• STP sensor malfunction.
• ECM malfunction.
P1654
H
Sensor voltage is higher than specified
value.
• STP sensor circuit shorted to VCC or ground circuit
open.
L
Sensor voltage is lower than specified
value.
• STP sensor circuit open or shorted to ground or VCC
circuit open.
ECM
R
Y
B/Br
VCC
STP
E2
STP sensor
5
4
12
I944H1110187-01
1234567891011121314151617
18
18
18 19 20 21 22 23 26 2724 25 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
I944H1110061-01