Specifications

ON-BOARD DIAGNOSTIC
F139
F
Diagnostic procedure
STEP INSPECTION ACTION
1 PERFORM DTC CONFIRMATION PROCEDURE
• Perform DTC CONFIRMATION PROCEDURE.
(See F66 DTC CONFIRMATION
PROCEDURE.)
• Is same DTC present?
Yes Go to next step.
No Intermittent concern exists. Go to INTERMITTENT
CONCERN TROUBLESHOOTING procedure.
(See F227 INTERMITTENT CONCERN
TROUBLESHOOTING.)
2 CLASSIFY OPEN CIRCUIT OR SHORT TO
GROUND MALFUNCTION
• Disconnect purge solenoid valve tube that is
connected to intake manifold.
• Connect vacuum pump to purge solenoid
valve.
• Pump vacuum pump several times and stop.
• Wait a few seconds.
• Is vacuum maintained?
Yes Go to Step 4.
No Go to next step.
3 INSPECT PASSAGE CONTROL OF PURGE
SOLENOID VALVE
• Turn ignition key to OFF.
• Disconnect purge solenoid valve connector.
• Pump vacuum pump several times and wait a
few seconds.
• Is vacuum maintained?
Yes Repair or replace harness for short to ground, then go to
Step 9.
No Replace purge solenoid valve, then go to Step 9.
4 INSPECT PURGE SOLENOID VALVE
CONNECTOR FOR POOR CONNECTION
• Turn ignition key to OFF.
• Inspect for poor connection (damaged/pulled-
out pins, corrosion, etc.).
• Is there malfunction?
Yes Repair or replace terminal, then go to Step 9.
No Go to next step.
5 INSPECT PURGE SOLENOID VALVE
• Perform purge solenoid valve inspection.
(See F39 PURGE SOLENOID VALVE
INSPECTION)
• Is purge solenoid valve okay?
Yes Go to next step.
No Replace purge solenoid valve, then go to Step 9.
6 INSPECT PURGE SOLENOID VALVE POWER
SUPPLY CIRCUIT FOR OPEN CIRCUIT
• Turn ignition key to ON (Engine OFF).
• Measure voltage between purge solenoid valve
connector terminal B and body ground.
• Is voltage B+?
Yes Go to next step.
No Repair or replace harness for open, then go to Step 9.
7 INSPECT PCM CONNECTOR FOR POOR
CONNECTION
• Turn ignition key to OFF.
• Disconnect PCM connector.
• Inspect for poor connection (damaged/pulled-
out pins, corrosion, etc.).
• Is there malfunction?
Yes Repair or replace terminal, then go to Step 9.
No Go to next step.
8 INSPECT PURGE SOLENOID VALVE
CONTROL CIRCUIT
• Turn ignition key to ON (Engine OFF).
• Measure voltage between purge solenoid valve
terminal A (harness-side) and body ground.
• Is voltage B+?
Yes Repair or replace harness for short to power, then go to
next step.
No Inspect for continuity between purge solenoid valve
terminal A (harness-side) and PCM terminal 4U (harness-
side).
• If there is continuity, go to next step.
• If there is no continuity, repair or replace harness for
open, then go to next step.
9 VERIFY TROUBLESHOOTING OF DTC P0443
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Perform KOER self-test.
(See F66 KOEO/KOER SELF-TEST.)
• Is same DTC present?
Yes Replace PCM, then go to next step.
(See F43 PCM REMOVAL/INSTALLATION.)
No Go to next step.
10 VERIFY AFTER REPAIR PROCEDURE
• Perform After Repair Procedure.
(See F66 AFTER REPAIR PROCEDURE.)
• Is there any DTC present?
Yes Go to applicable DTC troubleshooting.
(See F67 DTC TABLE.)
No Troubleshooting completed.