Shutdown(during neutral) - Toyota Vios 1.5G manual

[Dusty]

2014 Vios 1.5g Manual

Good morning mga Sir!

Anyone here nakaexperience yung habang nakafullstop sa traffic.. nakaneutral.. biglang magquickshutdown ang buong auto.. lights, aircon, engine (basta mga naka ON) then magturn on agad naman lahat (dahil siguro nakaengage yung key sa pag on) PWERA ang engine? Parang yung biglang nagrestart na computer..

Three times na nangyari.. Kapag naka neutral at stop (luckily).. Battery is still new.. Walang naman warning sa indicator lights ng dashboard.. bagong tune-up din ang auto.. everything is normal kung tutuusin.. nakakaworry lang yung may sumisingit na ganyang incident (di siya everyday) pag minsan..

Sensya na.. Not sure kung sensor related siya or anuman.. TIA..

[niky]

2014 Vios 1.5g Manual

Good morning mga Sir!

Anyone here nakaexperience yung habang nakafullstop sa traffic.. nakaneutral.. biglang magquickshutdown ang buong auto.. lights, aircon, engine (basta mga naka ON) then magturn on agad naman lahat (dahil siguro nakaengage yung key sa pag on) PWERA ang engine? Parang yung biglang nagrestart na computer..

Three times na nangyari.. Kapag naka neutral at stop (luckily).. Battery is still new.. Walang naman warning sa indicator lights ng dashboard.. bagong tune-up din ang auto.. everything is normal kung tutuusin.. nakakaworry lang yung may sumisingit na ganyang incident (di siya everyday) pag minsan..

Sensya na.. Not sure kung sensor related siya or anuman.. TIA..

There's something loose. Simplest would be battery cables, but it could be something more problematic.

[mina_nuka]

That would be loose power cable or loose ground wire. The most common cause is corrosion on the cable clamps. Test but running the engine and do a wiggle test on the battery cables and the negative cable to the body and to the engine block.

[Dusty]

There's something loose. Simplest would be battery cables, but it could be something more problematic.

That would be loose power cable or loose ground wire. The most common cause is corrosion on the cable clamps. Test but running the engine and do a wiggle test on the battery cables and the negative cable to the body and to the engine block.

Thank you so much..

Noted mga sirs.. Any chance din ba na sensor-related?

[oj88]

If the engine's been running, removing the battery should keep it running... albeit at a slightly lower RPM. My guess would be a loose or defective main relay or main fuse.

[Dusty]

If the engine's been running, removing the battery should keep it running... albeit at a slightly lower RPM. My guess would be a loose or defective main relay or main fuse.

Yes.. Been running (more than 30 mins.).

Thank you sir..


Mga Sir, from QC po ako, commonwealth area.. I'm hesitant to have my car checked sa Toyota Commonwealth (CASA).. Any suggestions para maayos yung concern ko?

[mina_nuka]

Whatever you do


DO NOT DISCONNECT THE BATTERY WITH THE IGNITION SWITCH ON OR WITH THE ENGINE RUNNING!



The voltage spike or surge is not friendly to your car's electronics including the PCM.

[Dusty]

Will OBD (?) scanner be effective to diagnose the problem? I'm not sure if it is mechanical or electrical (most likely).. Will double check the connecttions sa battery too..

[dr. d]

Whatever you do


DO NOT DISCONNECT THE BATTERY WITH THE IGNITION SWITCH ON OR WITH THE ENGINE RUNNING!



The voltage spike or surge is not friendly to your car's electronics including the PCM.

wouldn't the alternator even out the output, before it gets to the battery?

[mina_nuka]

Will OBD (?) scanner be effective to diagnose the problem? I'm not sure if it is mechanical or electrical (most likely).. Will double check the connecttions sa battery too..

Not when you cut the power supply off simulating the ignition switch being normally turned off.