Dodge ZB 2005 Service Manual page 1315

DRIVEABILITY - GAS
*CHECKING CHARGING SYSTEM OPERATION WITH NO DTCS —
Continued
TEST
4 Start the engine.
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 Turn the ignition off.
Disconnect the Generator Field harness connector at back of the Generator.
Measure resistance across the Generator Field Terminals at the Generator.
Is the resistance above 15 ohms?
Yes → Replace or repair the Generator as necessary.
→ Go To 6
No
6 Disconnect the PCM harness connectors.
Measure the resistance of the (K20) Generator Field Driver circuit between the PCM
harness connector and the Generator harness connector.
Is the resistance below 5.0 ohms?
Yes → Go To 7
→ Repair the open in the (K20) Gen Field Control circuit.
No
7 NOTE: Before continuing, check the PCM harness connector terminals for
corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors. Pay
particular attention to all Power and Ground circuits.
If there are no possible causes remaining, view repair.
Repair
8 Turn the ignition off.
NOTE: Battery condition must be verified prior to this test.
Inspect the Generator Belt tension and condition.
Is the Generator Belt OK?
Yes → Go To 9
→ Repair as necessary.
No
9 Start the engine.
Turn on all accessories.
Raise engine speed to 2000 RPM for 30 seconds then return to idle.
With the DRBIII , read DTCs.
Are there any Charging System Trouble Codes?
Yes → Refer to Symptom list for the related Charging DTCs.
→ Go To 10
No
ACTION
between the Generator Case and Battery Ground side.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Replace and program the Powertrain Control Module per Service
Information.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
Perform POWERTRAIN VERIFICATION TEST VER - 3.
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APPLICABILITY
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