Trouble Code Diagnostics; Code 16: Low Battery Voltage - Ariens Professional Sno-Thro Series Service Manual

TROUBLE CODE DIAGNOSTICS

NOTICE: Before performing diagnostic tasks, be aware of
the screw on the bottom of the throttle body that adjusts the
servo offset. The servo offset calibrates the throttle body at
the factory using a flow bench and should NEVER be
touched. If it is tampered with, the engine will run poorly
and void the warranty. See Figure 176.

Code 16: Low Battery Voltage

1. Charge the battery. Refer to Operator's Manual.
2. Start the engine. Refer to Operator's Manual.
3. Check charging system at the battery.
a. With a multi-meter set to volts DC, back probe the
battery terminals. At full throttle (3600 RPM), the
reading should be 7.5 V DC – 8.4 V DC.
If voltage measures less than 7.5 V DC, check charging
system at the engine. Advance to step 5.
IMPORTANT: If the engine is cold, it is normal for the
engine speed to be 100 RPM – 200 RPM higher until
operating temperature is reached.
4. Stop the engine. Refer to Operator's Manual.
b. Check the battery. With the engine off, the battery
voltage should be 7.2 V DC – 8.4 V DC. See
Figure 177.
If voltage measures less than 7.2 V DC after charging,
replace battery.
Figure 176
5. Back probe the engine stator output connector. See
Figure 178.
a. Start the engine. Refer to Operator's Manual.
b. At full throttle (3600 RPM), the stator output
MUST be 11.5 V AC – 14 V AC.
If AC voltage measure less than 11.5 V AC, remove
flywheel and replace stator.
If stator output is within range and battery is not charging,
check ECU wiring for damage. Replace ECU if necessary.
Stator
Connector
EN – 74
Figure 177
Figure 178