TEST ACTION APPLICABILITY
2 WARNING: 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.
Ignition on, engine not running.
NOTE: Ensure all wires are clear of the engine’s moving parts.
Measure the voltage between the Generator B+ Terminal and the Battery+ Post.
Start the engine.
Is the voltage above 0.4 of a volt?
All
Yes → Repair the B+ circuit for high resistance between the Generator
and Battery.
Perform POWERTRAIN VERIFICATION TEST VER-3-NGC.
No → Go To 3
3 WARNING: 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.
Allow the engine to reach normal operating temperature.
NOTE: Ensure all wires are clear of the engine’s moving parts.
Measure the voltage between the Generator case and Battery ground post.
Is the voltage above 0.1 of a volt?
All
Yes → Repair Generator Ground for high resistance, Generator Case to
Battery ground side.
Perform POWERTRAIN VERIFICATION TEST VER-3-NGC.
No → Go To 4
4 Turn the ignition off.
Disconnect the Generator Field harness connector.
Using a 12-volt test light, jumper it across the Generator Field harness connector.
Ignition on, engine not running.
With the DRBIIIt, actuate the Generator Field Driver circuit.
Does the test light illuminate brightly and flash on and off?
All
Yes → Replace the Generator.
Perform POWERTRAIN VERIFICATION TEST VER-3-NGC.
No → Go To 5
5 Turn the ignition off.
Disconnect the Generator Field harness connector.
Using a 12-volt test connected to battery voltage, probe the Generator (Z1) Ground
circuit in the Generator Field harness connector.
Does the test light illuminate brightly?
All
Yes → Go To 6
No → Repair the open in the (Z1) Generator Field Ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER-3-NGC.
208
DRIVEABILITY - NGC
P0562-BATTERY VOLTAGE LOW — Continued
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