DTC 36 [WLT-2]

id010297235900

DTC 36

GLOW PLUG RELAY MALFUNCTION
DETECTION CONDITION
•  When the glow plug relay is on, current voltage signal of the relay below 1.0 V is inputted to the PCM continuously for more than 1.0 S.
•  When the glow plug relay is off, signal of the relay current voltage above 4.0 V is inputted to the PCM continuously for more than 1.0 S.
POSSIBLE CAUSE
•  Connector or terminal malfunction
•  Open or short circuit in wiring from PCM terminal O and glow plug relay terminal 1A
•  Open or short circuit in wiring from PCM terminal I and glow plug relay terminal 3A
•  Open circuit in wiring harness between glow plug relay terminal B and body ground
•  Open or short circuit in wiring from glow plug relay terminal 2A and glow fuse
•  Glow plug relay malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION
1
Does glow plug relay connector or PCM connector have poor connection?
Yes
Repair or replace connector, then go to Step 5.
No
Go to the next step.
2
Remove glow plug relay.
Is there continuity between glow plug relay terminal 1A and PCM terminal O?
Is there continuity between glow plug relay terminal 3A and PCM terminal I?
Yes
Go to the next step.
No
Repair or replace wiring harness.
3
Is there continuity between glow plug relay terminal 1B and body ground?
Yes
Go to the next step.
No
Repair or replace wiring harness.
4
Is there continuity between glow plug relay terminal 2A and glow fuse?
Yes
Go to the next step.
No
Repair or replace wiring harness.
5
Is glow plug relay normal?
(See GLOW PLUG RELAY INSPECTION [WLT-1, WLT-2].)
Yes
Go to the next step.
No
Replace glow plug relay.
6
Clear DTC from memory.
Is same code No. present after performing “After Repair Procedure”?
Yes
Go to Step 1.
No
Intermittent poor connection in harnesses or connectors.
Repair connectors and/or harnesses, then go to the next step.
7
Clear DTC from memory.
Is there any DTC present after performing “After Repair Procedure”?
Yes
Go to applicable DTC inspection.
(See DTC TABLE [WLT-2].)
No
Troubleshooting completed.