Engine cooling symptom diagnosis

Schematic and routing diagramEngine oil
Oil quality is a major contributor to
your engine's performance and
life. Always select good quality
engine oil. Suzuki recommends
the use of suzuki performance
4 motor oil or equivalent
engine oil. Use sf/sg or sh/
sj with jaso ma in api (american
petroleum institute) classification.
A ...
DTC “c21” (p0110-h/l): iat sensor circuit
malfunction
Detected condition and possible cause
Detected condition
Possible cause
C21
Output voltage is not with in the following
range.
0.15 V ≤ Sensor voltage < 4.85 V
Iat sensor circuit open or short.
Iat sensor malfunction.
Ec ...
Water hose inspection
Inspect the water hoses in the following procedures:
remove the side cowlings. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Check the water hoses for crack, damage or engine
coolant leakage. If any defect is found, replace the
water hose wi ...