Suzuki GSF650A - Malfunction Code and Defective Condition Table

Engine General Information and Diagnosis: 1A-24
Visual Inspection
Prior to diagnosis using the mode select switch or SDS, perform the following visual inspections. The reason for visual
inspection is that mechanical failures (such as oil leakage) cannot be displayed on the screen with the use of mode
select switch or SDS.
• Engine oil level and leakage. Refer to “Engine Oil and Filter Replacement in Section 0B (Page 0B-12)”.
• Engine coolant level and leakage. Refer to “Cooling Circuit Inspection in Section 1F (Page 1F-4)”.
• Fuel level and leakage. Refer to “Fuel Line Inspection in Section 0B (Page 0B-12)”.
• Clogged air cleaner element. Refer to “Air Cleaner Element Inspection and Cleaning in Section 0B (Page 0B-4)”.
• Battery condition. Refer to “Battery Visual Inspection in Section 1J (Page 1J-12)”.
• Throttle cable play. Refer to “Throttle Cable Play Inspection and Adjustment in Section 0B (Page 0B-14)”.
• Vacuum hose looseness, bend and disconnection.
• Broken fuse. Refer to “Precautions for Electrical Circuit Service in Section 00 (Page 00-2)”.
• FI light operation. Refer to “Self-Diagnosis Function (GSF650/S/A/SAK7) (Page 1A-2)”.
• Each warning light operation. Refer to “Combination Meter Inspection (GSF650/S/A/SAK7) in Section 9C (Page 9C-
6)”.
• Speedometer operation. Refer to “Combination Meter Inspection (GSF650/S/A/SAK7) in Section 9C (Page 9C-6)”.
• Exhaust gas leakage and noise. Refer to “Exhaust System Inspection in Section 1K (Page 1K-5)”.
• Each coupler disconnection. Refer to “Precautions for Electrical Circuit Service in Section 00 (Page 00-2)”.
• Clogged radiator fins. Refer to “Radiator Inspection and Cleaning in Section 1F (Page 1F-6)”.
Malfunction Code and Defective Condition Table
B817H21104009
Malfunction
Code
Detected Item Detected Failure Condition Check For
C00 NO FAULT — —
C12
CKP sensor
The signal does not reach ECM for 3 sec. or
more, after receiving the starter signal.
CKP sensor wiring and
mechanical parts
CKP sensor, lead wire/coupler
connection
P0335
C13/C17
IAP sensor
The sensor should produce following voltage.
0.5 V ≤ sensor voltage < 4.85 V
In other than the above range, C13 (P0105) or
C17 (P1750) is indicated.
IAP sensor, lead wire/coupler
connection
P0105/
P1750
H Sensor voltage is higher than specified value.
IAP sensor circuit open or
shorted to Vcc or ground circuit
open
L Sensor voltage is lower than specified value.
IAP sensor circuit shorted to
the ground or Vcc circuit open
C17/P1750
If the pressure variation (voltage variation)
does not exist even under the engine
operating condition, this malfunction code is
output.
Make sure to check that IAP
sensor #2 is securely installed
on the throttle body.
C14
TP sensor
The sensor should produce following voltage.
0.2 V ≤ sensor voltage < 4.8 V
In other than the above range, C14 (P0120) is
indicated.
TP sensor, lead wire/coupler
connection
P0120
H Sensor voltage is higher than specified value.
TP sensor circuit shorted to
Vcc or ground circuit open
L Sensor voltage is lower than specified value.
TP sensor circuit open or
shorted to the ground or Vcc
circuit open