F2–144
ON-BOARD DIAGNOSTIC
End Of Sie
3 INSPECT GLOW PLUG RELAY CIRCUIT FOR
SHORT TO GND
• Turn engine switch to OFF.
• Inspect continuity between following
harnesses:
— Glow plug relay terminal A and body GND.
— Glow plug relay terminal C and body GND.
— Glow plug relay terminal D and body GND.
• Is there continuity?
Yes Repair or replace harness for short to GND, go to Step 9.
No Go to next step.
4 INSPECT GLOW PLUG RELAY CIRCUIT FOR
SHORT TO POWER
• Turn engine switch to ON (Engine OFF).
• Inspect voltage between following harnesses:
— Glow plug relay terminal C and body GND.
— Glow plug relay terminal D and body GND.
• Is voltage below 1.0 V?
Yes Go to next step.
No Repair or replace harness for short to power, go to Step 9.
5 INSPECT GLOW PLUG RELAY CIRCUIT FOR
SHORT WITH EACH OTHER
• Turn engine switch to OFF.
• Inspect continuity between glow plug relay
terminals A and C.
• Is there continuity?
Yes Repair or replace harness for short with each other, go to
Step 7.
No Go to next step.
6 INSPECT GLOW PLUG RELAY CIRCUIT FOR
OPEN
• Turn engine switch to OFF.
• Inspect continuity between following
harnesses:
— Glow plug fuse and glow plug relay terminal
A.
— Glow plug relay terminal B and body GND.
• Is there continuity?
Yes Go to next step.
No Repair or replace harness for open, go to Step 9.
7 INSPECT GLOW PLUG RELAY
• Inspect glow plug relay.
(See T–19 RELAY INSPECTION)
• Is there any malfunction?
Yes Replace glow plug relay, go to Step 9.
No Go to next step.
8 INSPECT POOR CONNECTION OF PCM
CONNECTOR
• Turn engine switch to OFF.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
Yes Repair or replace suspected terminal, go to Step 9.
No Go to next step.
9 INSPECT GLOW PLUG RELAY CIRCUIT FOR
OPEN
• Turn engine switch to OFF.
• Inspect continuity between following
harnesses:
— Glow plug relay terminal D and PCM
terminal 68.
— Glow plug relay terminal C and PCM
terminal 86.
• Is there continuity?
Yes Go to next step.
No Repair or replace harness for open, go to next step.
10 VERIFY TROUBLESHOOTING OF DTC P0380
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from PCM memory using WDS or
equivalent.
• Start engine.
• Is same DTC present?
Yes Replace PCM, go to next step.
(See F2–64 PCM REMOVAL/INSTALLATION)
No Go to next step.
11 VERIFY AFTER REPAIR PROCEDURE
• Perform “After Repair Procedure”.
(See F2–86 AFTER REPAIR PROCEDURE)
• Is there any DTC present?
Yes Go to applicable DTC inspection.
(See F2–87 DTC TABLE)
No Troubleshooting completed.
STEP INSPECTION ACTION
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