Workshop Manual

6E–249
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P0204 – Injector 4 Control Circuit (Cont'd)
Step NoYesValue(s)Action
6 Note whether the injector test light for cylinder 4 was
“OFF” or “ON” steady in step 5.
Was the test light “ON” steady while cranking the
engine?
— Go to Step 7 Go to Step 9
7 1. Disconnect the PCM connector for the affected
injectors.
2. With a test light connected to B+, probe the affected
injector driver circuit.
Does the test light illuminate?
— Go to Step 8 Go to Step 15
8 Repair short to ground in the injector driver circuit.
Is the action complete?
—
Go to OBD
System
Check
—
9 1. Disconnect the injector test connector.
2. At the injector side of the harness, connect an
ohmmeter between the positive wire (red with blue
tracer) and the wire for cylinder 4 (green/red).
Does the ohmmeter indicate continuity?
— Go to Step 11 Go to Step 10
10 Repair the open injector harness wire or open injector.
Is the action complete?
— Verify repair —
11 At the PCM side of the injector test connector, check
the green/red wire for a short to voltage.
Was there a short to voltage?
— Go to Step 12 Go to Step 13
12 Repair the short to voltage.
Is the action complete?
— Verify repair —
13 Check for an open circuit between the injector test
connector and the PCM.
Was there an open circuit?
— Go to Step 14 Go to Step 15
14 Repair the open circuit.
Is the action complete?
— Verify repair —
15 Replace the PCM.
IMPORTANT: The replacement PCM must be
programmed. Refer to On-Vehicle Service in
Powertrain Control Module and Sensors for
procedures.
And also refer to the latest Service Bulletin.
Check to see if the Latest software is released or not.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.
Is the action complete?
— Verify repair —