Toyota Tundra 2005 Service - Repair - Maintenance page 1927

Engine
Room
R/B
SFI (1GR−FE)
A/F SENSOR HEATER RELAY
INSPECTION
A/F Sensor
1.
Heater Relay
A23245
2.
(a)
(b)
A23410
3.
− A/F SENSOR HEATER RELAY
REMOVE A/F SENSOR HEATER RELAY
INSPECT A/F SENSOR HEATER RELAY
Using an ohmmeter, check for continuity between each
terminal.
Specified condition:
Terminal No.
1 − 2
3 − 5
Using an ohmmeter, check for continuity between termi-
nals 3 and 5 when the battery voltage is applied across
terminals 1 and 2.
Specified condition: Continuity
INSTALL A/F SENSOR HEATER RELAY
SF−53
SF1Z2−01
Specified condition
Continuity
No continuity