Toyota Tundra 2005 Service - Repair - Maintenance page 340

1 Check OCV circuit.
PREPARATION:
(a) Connect the hand−held tester to the DLC3.
(b) Start the engine and warm it up.
(c) Turn the ignition switch to ON and turn the hand−held tester ON.
CHECK:
(a) Select the item: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1 or VVT CTRL B2.
(b) Using the hand−held tester, operate the OCV and check the engine speed.
OK:
Standard:
Tester Operation
OCV is OFF
OCV is ON
NG
2 Check operation of OCV).
Battery −
Valve
A31449
OK
DIAGNOSTICS
OK
PREPARATION:
Battery +
(a) Start the engine and warmed it up.
(b) Disconnect the OCV connector.
(c) Apply battery positive voltage between the terminals of
the OCV.
CHECK:
Check the engine speed.
OK:
Rough idle or engine stalled.
A23511
NG
− ENGINE (1GR−FE)
Specified Condition
Normal engine speed
Rough idle or engine stall
Check for intermittent problems
(See page DI−11).
Replace OCV.
DI−73