Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Tundra 2000-2006 Approved 04-06 techinfo.toyota.com ileaf 06toyrm 06toypdf 06rmsrc 06tundra sf2uzfe ashr insp
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SFI (2UZ-FE) - A/F SENSOR HEATER RELAY
A/F SENSOR HEATER RELAY SF1XR-01
INSPECTION
1. REMOVE RELAY BOX COVER
2. REMOVE A/F SENSOR HEATER RELAY (Marking: A/F
HTR)
Continuity 3. INSPECT A/F SENSOR HEATER RELAY CONTINUITY
(a) Using an ohmmeter, check that there is continuity be-
Ohmmeter 2 Ohmmeter
1 tween terminals 1 and 2.
If there is no continuity, replace the relay.
5
(b) Check that there is no continuity between terminals 3 and
5.
3 If there is continuity, replace the relay.
No Continuity
S04947
4. INSPECT A/F SENSOR HEATER RELAY OPERATION
2 (a) Apply battery voltage across terminals 1 and 2.
Ohmmeter
1 (b) Using an ohmmeter, check that there is continuity be-
tween terminals 3 and 5.
5
If there is no continuity, replace the relay.
5. REINSTALL A/F SENSOR HEATER RELAY
3 6. REINSTALL RELAY BOX COVER
Battery
Continuity
S04946
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