Electrical Test

Cold start valve, checking
Work sequence





- Unplug connector from cold start valve (arrow)





- Using LED test light US-1115, connect red test lead to terminal 1 and black test lead to terminal 2 of open cold start valve connector

Note: Cold start valve operates for only approx. 10 seconds

- Initiate output diagnosis sequence until code 4443 for cold start valve is displayed
^ Specification: LED of US 1115 must be ON

If LED is ON
- Replace cold start valve

If LED is NOT ON
- Connect voltmeter between terminal 1 of cold start valve connector and ground
^ Specification: approx. 12V

If voltage reading NOT OK
- Check for open circuit in wiring according to current flow diagram

If voltage reading OK
- Remove cover for control unit located in front passenger side footwell




- Unplug control unit connector





- Using ohmmeter, check for continuity between terminal 2 of cold start valve connector and terminal 1 of control unit connector A
^ Specification: approx. 0.2 ohm

If ohmmeter reading NOT OK
- Check for open circuit in wiring according to current flow diagram

If wiring OK
- Replace control unit