Specifications

ON-BOARD DIAGNOSTIC
F151
F
End Of Sie
4 INSPECT PSP SWITCH
• Perform PSP switch inspection.
(See F58 POWER STEERING PRESSURE
(PSP) SWITCH INSPECTION.)
• Is PSP switch okay?
Yes Go to next step.
No Replace PSP switch, then go to Step 8.
5 INSPECT PSP SWITCH SIGNAL CIRCUIT FOR
SHORT TO GROUND
• Disconnect PCM connector.
• Inspect continuity between PSP switch
terminal (harness-side) and body ground.
• Is there any continuity?
Yes Repair or replace harness for short to ground, then go to
Step 8.
No Go to next step.
6 INSPECT POOR CONNECTION OF PCM
CONNECTOR
• Turn ignition key to OFF
• Disconnect PCM connector.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Are there any malfunctions?
Yes Repair terminal, then go to Step 8.
No Go to next step.
7 INSPECT SIGNAL CIRCUIT MALFUNCTION
FOR OPEN CIRCUIT
• Inspect continuity between PSP terminal A
(harness-side) and PCM terminal 1Z.
• Is there any continuity?
Yes Repair or replace harness, then go to next step.
No Go to next step.
8 VERIFY TROUBLESHOOTING OF DTC P0550
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Start engine.
• Clear DTC from PCM memory using WDS or
equivalent.
• Drive vehicle above 60 km/h {37.3 mph} for 1
min.
• Verify that ECT PID above 60 °
°°
°C {140 °
°°
°F}
using WDS or equivalent.
• Is PENDING CODE the same as DTC
present?
Yes Replace PCM, then go to next step.
(See F43 PCM REMOVAL/INSTALLATION.)
No Go to next step.
9 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.
STEP INSPECTION ACTION