TEST
ACTION
APPLICABILITY
8
Start the engine.
Warm the engine to operating temperature.
Caution: Ensure all wires are clear of the engine’s moving parts.
Measure voltage between the Generator case and Battery (-) Post.
Is the voltage above 0.1 volt?
All
Yes
→
Repair Generator Ground for high resistance, Generator Case to
Battery (-) side.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
No
→
Go To
17
9
Turn ignition on, engine not running.
Measure voltage between the Generator B(+) Terminal and the Battery (+) Post.
Caution: Ensure all wires are clear of the engine’s moving parts.
Start the engine.
Is the voltage above 0.4 volt?
All
Yes
→
Repair the B(+) Circuit for high resistance between the Generator
and Battery.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
No
→
Go To
10
10
Start the engine.
Warm the engine to operating temperature.
Caution: Ensure all wires are clear of the engine’s moving parts.
Measure voltage between the Generator case and Battery (-) Post.
Is the voltage above 0.1 volt?
All
Yes
→
Repair Generator Ground for high resistance, Generator Case to
Battery (-) side.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
No
→
Go To
11
11
CAUTION: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
Start the engine.
Turn on all accessories, manually set engine speed to 1600 RPM.
With DRBIII
t, read Target Charging and Charging voltage.
Compare the two readings.
Is there more than a 1.0 volt difference?
All
Yes
→
Go To
12
No
→
Test Complete.
12
Ignition on, engine not running.
With the DRBIII
t, actuate the Generator Field.
Measure the voltage at both Generator Field Terminals.
Is the voltage below 3.0 volts at either Terminal?
All
Yes
→
Go To
13
No
→
Test Complete.
28
CHARGING
P1682-CHARGING SYSTEM VOLTAGE TOO LOW —
Continued