Toyota 1 MZ–FE Manual page 548

EG2–548
INSPECTION PROCEDURE
HINT: If diagnostic trouble codes P0110, P0115 and P0120 are output simultaneously, E2 (sensor
ground) may be open.
TOYOTA hand–held tester
Check for open in harness or ECM.
Check for open in harness or ECM.
Confirm connection at ECM. If OK, replace ECM.
1MZ–FE ENGINE – CIRCUIT INSPECTION
(1) Remove the fuse cover on the instrument
panel.
(2) Connect the TOYOTA hand–held tester to the
DLC 3.
(3) Disconnect the throttle position sensor con–
nector.
(4) Connect sensor wire harness terminals be–
tween terminals 1 and 2.
(5) Turn ignition switch ON.
Read CTP switch signal on the TOYOTA hand–
held tester.
CTP switch signal: ON
Confirm good connection at sensor. If OK,
replace throttle position sensor.
(1) Remove glove compartment.
(See page BO–309)
(2) Connect between terminals IDL and E2 of
ECM connectors.
H I NT: Throttle position sensor connector is disconnected.
Before checking, do a visual check and contact
pressure –check for the connector.
(See page EG2–418)
(3) Turn ignition switch ON.
Read CTP switch signal on the TOYOTA hand–
held tester.
CTP switch signal: ON
Open in harness between ECM and
throttle position sensor, repair or replace
harness.