Dtc "C29" (P1654-H/L): Secondary Throttle Position Sensor (Stps) Circuit Malfunction - Suzuki SFV650 Service Manual

1A-73 Engine General Information and Diagnosis:

DTC "C29" (P1654-H/L): Secondary Throttle Position Sensor (STPS) Circuit Malfunction

Detected Condition and Possible Cause
Detected Condition
Output voltage is not within the following
range.
C29
0.1 V ≤ Sensor voltage < 4.8 V
Sensor voltage is higher than specified
H
value.
P1654
Sensor voltage is lower than specified
L
value.
Wiring Diagram
STP sensor
18 18 18 19 20 21 22 23
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)".
ECM coupler (Harness side)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
24 25 26 27 28 29 30 31 32 33 34
• STP sensor maladjusted.
• STP sensor circuit open or short.
• STP sensor malfunction.
• ECM malfunction.
• STP sensor circuit shorted to VCC or ground circuit
open.
• STP sensor circuit open or shorted to ground or VCC
circuit open.
R
Y
B/Br
35
44 45 46 47 48 49 50 51 52
Possible Cause
ECM
5 VCC
4
STP
12 E2
37 38 39 40 41 42 43
B944H11104019
I944H1110187-01
I944H1110061-01