toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Sensors and Switches - Fuel Delivery and Air Induction > < Electrical - Multiple Warning Lamp ON/No Shift From PARK|Page 5033
Page 1
background image

Main Relay (Computer/Fuel System): Testing and Inspection

ON-VEHICLE INSPECTION

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION:  Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt
pretensioner activation.

2. INSPECT INSTRUMENT PANEL JUNCTION BLOCK

NOTE:The circuit opening (C/OPN) relay is built into the instrument panel junction block.

a. Measure the resistance between the terminals.

If the result is not as specified, replace the instrument panel junction block.

3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

Sensors and Switches - Fuel Delivery and Air Induction > < Electrical - Multiple Warning Lamp ON/No Shift From PARK|Page 5033