Yaris L4-1.5L (1NZ-FE) (2007)
Ignition Timing: Testing and Inspection
INSPECT IGNITION TIMING
(a)
When using an intelligent tester:
(1) Warm up and stop the engine.
(2) Connect the intelligent tester to the DLC3.
(3) Turn the ignition switch ON.
(4) Select the following menu items:
DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / TC (TE1) / ON.
HINT: Refer to the intelligent tester operator's manual for further details.
(5) Inspect the ignition timing during idling.
Ignition timing: 8 to 12 degrees BTDC
NOTICE:
^
Turn all the electrical systems and the A/C off.
^
Inspect the ignition timing with the cooling fan off.
^
When checking the ignition timing, shift the transmission to the neutral position.
(6) Select the following menu items: TC (TE1) / OFF.
(7) Turn the ignition switch OFF.
(8) Disconnect the intelligent tester from the DLC3.
(b) When not using an intelligent tester:
(1) Remove cylinder head cover No. 2.
(2) Pull out the wire harness (brown) shown in the illustration.
NOTICE: After checking, wrap the wire harness with tape.
(3) Warm up and stop the engine.
(4) Connect the clip of the timing light to the wire harness.
NOTICE: Use a timing light that detects the first signal.
(5) Turn the ignition switch ON.