Chrysler 300M 2002 Service Manual page 2719

DRIVEABILITY - NGC
P2503-CHARGING SYSTEM VOLTAGE LOW —
TEST
2 NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
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.
With the engine running at normal operating temperature, monitor the DRBIII
parameters related to the DTC while wiggling the wire harness. Look for parameter
values to change and/or a DTC to set.
Review the DRBIII Freeze Frame information. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wire harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wire harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?
Yes → Repair as necessary
→ Test Complete.
No
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.
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?
Yes → Repair the B+ circuit for high resistance between the Generator
→ Go To 4
No
4 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.
Warm the engine to 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?
Yes → Repair Generator Ground for high resistance, Generator Case to
→ Go To 5
No
ACTION
Perform POWERTRAIN VERIFICATION TEST VER - 3.
and Battery.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Battery ground side.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Continued
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APPLICABILITY
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