Toyota Corolla (E120) 2002–2008 Repair Manual / Diagnostics / Electronic controlled automatic transaxle / O/d main switch circuit / Inspection procedure
Toyota Corolla (E120): Inspection procedure
1 Check harness and connector(transmission control switch – body ground)
- Disconnect the transmission control switch connector of shift lever assy.
- measure the resistance according to the value(s) in the table below.
Standard:
2 Inspect transmission control switch
- Measure the resistance according to the value(s) in the table below.
Standard:
3 Check harness and connector(transmission control switch – ecm)
- Connect the transmission control switch connector of shift lever assy.
- disconnect the ecm connector.
- measure the resistance according to the value(s) in the table below.
Standard:
Proceed to next circuit inspection shown on problem symptoms table
Other materials:
Checking the messages
1 Display the “Message Inbox” screen.
2 Select the desired message from the list.
3 Check that the message is displayed.
1 E-mails: Select “Mark Unread” or “Mark Read” to mark mail unread or read on
the message inbox screen.
This function is available when “Update Message Read S ...
Circuit description
When the ignition switch is turned on, battery positive voltage is applied to
the coilwhich closes the contacts
of the efi main relay (marked: efi) and supplies power to terminal +b of the ecm.
This signal causes current to flow to the coil, closing the contacts of the efi
relay and supplyin ...
Engine coolant
The coolant level is satisfactory if it is between the “F” and “L” lines on the
reservoir when the engine is cold.
1 Reservoir cap
2 “F” line
3 “L” line
If the level is on or below the “L” line, add coolant up to the “F” line.
■Coolant selection
Only use “To ...