TEST ACTION APPLICABILITY
1 Ignition on, engine not running.
With the DRBIIIt, read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
All
Yes → Go To 2
No → Refer to the INTERMITTENT CONDITION symptom in the
Driveability category.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
2 Turn the ignition off.
Disconnect the Fuel Injector harness connector.
Ignition on, engine not running.
With the DRBIIIt, 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?
All
Yes → Go To 3
No → Repair the open or high resistance in the ASD Relay Output
circuit.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
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 DRBIIIt, actuate the Fuel Injector.
Does the test light blink/flicker?
All
Yes → Replace the Fuel Injector.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
No → Go To 4
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?
All
Yes → Go To 5
No → Repair the open in the Injector Control circuit.
Perform POWERTRAIN VERIFICATION TEST VER-5-NGC.
113
DRIVEABILITY - NGC
P0201-FUEL INJECTOR #1 — Continued