Dodge ZB 2005 Service Manual page 1299

DRIVEABILITY - GAS
P1682-CHARGING SYSTEM VOLTAGE TOO LOW —
TEST
2 Turn the ignition off.
Note: Generator Belt tension and condition must be checked before con-
tinuing.
Start the engine.
Allow the engine to reach normal operating temperature.
With the DRBIII in sensors, read the Battery Temp Sensor value.
Using a Thermometer, measure under hood temperature.
Is the temperature within 10° F of Battery temperature?
Yes → Go To 3
→ Replace the Battery Temperature Sensor.
No
3 Ignition on, engine not running.
Measure the voltage between the Generator B+ Terminal and the Battery Positive
Post.
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.
CAUTION: Ensure all wires are clear of the engine's moving parts.
Start the engine.
Is the voltage above 0.4 of a volt?
Yes → Repair the excessive resistance in the Battery Positive circuit
→ Go To 4
No
4 Start the engine.
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.
Warm the engine to operating temperature.
Caution: Ensure all wires are clear of the engine's moving parts.
Measure the voltage between the Generator case and Battery Negative Post.
Is the voltage above 0.1 of a volt?
Yes → Repair the excessive resistance in the Generator Ground circuit
→ Go To 5
No
5 Ignition on, engine not running.
Carefully inspect all connectors for corrosion or spread terminals before continuing.
With the DRBIII actuate the Generator Field Driver.
While backprobing, measure the voltage on the (K125) Generator Field Source circuit
at back of Generator.
Is the voltage above 10.0 volts?
Yes → Go To 6
→ Repair the open in the (K125) Generator Field Source circuit.
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 3.
between the Generator and Battery.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
between the Generator Case and Battery Negative side.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
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Continued
APPLICABILITY
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