Dodge 2004 Neon SX2 Diagnostic Manual page 563

P0622-GENERATOR FIELD CONTROL CIRCUIT —
TEST
3 Turn the ignition off.
Disconnect the Generator Field harness connector.
Using a 12-volt test connected to battery voltage, probe the (Z1) Gen Ground circuit
in the Generator Field harness connector.
Does the test light illuminate brightly?
Yes → Go To 4
No
4 Turn the ignition off.
Disconnect the Generator Field harness connector.
Disconnect the PCM harness connector.
Measure the voltage on the (K20) Gen Field Control circuit in the Generator Field
harness connector.
Is the voltage above 1.0 volts?
Yes → Repair the short to voltage in the (K20) Gen Field Control circuit.
No
5 Turn the ignition on.
Disconnect the Generator Field harness connector.
Disconnect the PCM harness connector.
Measure the resistance between ground and the (K20) Gen Field Control circuit in
the Generator Field harness connector.
Is the resistance below 100 ohms?
Yes → Repair the (K20) Gen Field Control circuit for a short to ground.
No
6 Turn the ignition off.
Disconnect the Generator Field harness connector.
Disconnect the PCM harness connector.
CAUTION: DO NOT PROBE THE PCM HARNESS CONNECTORS. PROBING
THE PCM HARNESS CONNECTORS WILL DAMAGE THE PCM TERMI-
NALS RESULTING IN POOR TERMINAL TO PIN CONNECTION. INSTALL
MILLER SPECIAL TOOL #8815 TO PERFORM DIAGNOSIS.
Measure the resistance of the (K20) Gen Field Control circuit from the Generator
Field harness connector to the appropriate terminal of the special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Go To 7
No
7 NOTE: Before continuing, check the PCM connector terminals for corro-
sion, damage, or terminal push out. Repair as necessary.
If there are no possible causes remaining, view repair.
Repair
ACTION
→ Repair the open in the (Z1) Gen Field Ground circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 3 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 3 - NGC.
→ Go To 5
Perform POWERTRAIN VERIFICATION TEST VER - 3 - NGC.
→ Go To 6
→ Repair the open in the (K20) Gen Field Control circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 3 - NGC.
Replace and program the Powertrain Control Module in accor-
dance with the Service Information.
Perform POWERTRAIN VERIFICATION TEST VER - 3 - NGC.
DRIVEABILITY - NGC
227
Continued
APPLICABILITY
All
All
All
All
All