Malaguti SPIDER MAX GT 500 Manual Diagnóstico página 238

SPIDER MAX 500
Disconnect the stepper motor connector. Test the stepper motor circuit resistance by connecting the
multimeter as shown in the picture. The two readings must give the same value.
Resistance = = 50 Ω
F. 95
Connect the testing wiring. Do not connect the
central unit to perform these checks.
Verify the continuity of the 4 stepper motor supply lines. (0Ω = continuity)
PIN A - (yellow/gray cable)
PIN C - (red/gray cable)
A
F. 96
Make sure that the 4 stepper motor lines are properly insulated from the ground.
PIN 14-PIN 23 = >1 MΩ (infinitive)
PIN 21-PIN 23 = >1 MΩ (infinitive) PIN 24-PIN 23 = >1 MΩ (infinitive)
F. 97
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Perform the stepper motor circuit test.
≥ ≥ ≥ ≥ ≥ 50 Ω Ω Ω Ω Ω
Connect the testing wiring but do not connect the connector
to the central unit. Replace the throttle body (see chapter
THERMAL UNIT AND TIMING - Engine Manual).
- PIN 14 = 0Ω PIN B - (yellow/blue cable) - PIN 6 = 0Ω
- PIN 21 = 0Ω PIN D - (red/black cable)
B
PIN 6-PIN 23 = >1 MΩ (infinitive)
6
112 12/04
- PIN 24 = 0Ω
D
C
23
B