Fault Detection On Starter Motor And Lines; Checking Voltage Feed; Carbon Brushes; Carbon Brush Appearance - Volvo Penta TAD1242GE Technical Description

Group 23 EDC III
Fault detection on starter
motor and lines
General
If the voltage level of the battery is under 24.7V as
measured from the battery, the starter motor does not
have enough power to rotate the engine at normal
speed.

Checking voltage feed

1. Check that the voltage in the battery is at least
24.7V when unloaded by measuring between the
battery poles with multimeter 9510060-8.
2. Turn on the main switch.
3. Check that the voltage between positions 30 and 31
on the starter motor are the same as the battery.
Check
1. That error code 4.6 is not set.
2. That a start request is sent (using the PC
diagnostics program).
3. That the starter motor is activated (using the PC
diagnostics program).

Carbon brushes

Specifications for carbon brushes in the starter motor
are described below.

Carbon brush appearance

New = 23 mm (0.91'')
Replace at 13 mm (0.51'')
Electronic fault detection
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