Dodge 2004 Neon SX2 Diagnostic Manual page 449

P0201-FUEL INJECTOR #1 —
TEST
1 Ignition on, engine not running.
With the DRBIII , read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
Yes → Go To 2
→ Refer to the INTERMITTENT CONDITION symptom in the
No
2 Turn the ignition off.
Disconnect the Fuel Injector harness connector.
Ignition on, engine not running.
With the DRBIII , actuate the ASD Relay.
Using a 12-volt test light connected to ground, backprobe the ASD Relay Output
circuit at the Fuel Injector harness connector.
Does the test light illuminate brightly?
Yes → Go To 3
→ Repair the open or high resistance in the ASD Relay Output
No
3 Turn the ignition off.
Disconnect the Fuel Injector harness connector.
Ignition on, engine not running.
Using a 12-volt test light connected to 12-volts, backprobe the Injector Control
circuit.
With the DRBIII , actuate the Fuel Injector.
Does the test light blink/flicker?
Yes → Replace the Fuel Injector.
→ Go To 4
No
4 Turn the ignition off.
Disconnect the Fuel Injector harness connector.
Disconnect the PCM harness connectors.
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 Injector Control circuit from the Fuel Injector harness
connector to the appropriate terminal of special tool #8815.
Is the resistance below 5.0 ohms?
Yes → Go To 5
→ Repair the open in the Injector Control circuit.
No
Continued
ACTION
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
circuit.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
Perform POWERTRAIN VERIFICATION TEST VER - 5 - NGC.
DRIVEABILITY - NGC
113
APPLICABILITY
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