Suzuki Swift User Manual page 233

STEP
7 Check signal rotor for the following, using mirror.
See Fig. 4.
D Damage
D No foreign material attached
Is it in good condition?
Fig. 1 for Step 3
Vout
B+
Fig. 4 for Step 7
ACTION
Fig. 2 for Step 4
GND
Mirror
ENGINE GENERAL INFORMATION AND DIAGNOSIS (SFI FOR G13) 6-1-77
YES
Intermittent trouble or
faulty ECM (PCM).
Check for intermittent
referring to
"Intermittent and
Poor Connection" in
Section 0A.
Fig. 3 for Step 6
Magnetic substance (iron)
NO
Clean rotor teeth or
replace CMP sensor.