Ignition Timing: Testing and Inspection

1. Warm up engine.
Allow the engine to warm up to normal operating temperature.





2. Connect TOYOTA hand-held tester or OBD II scan tool.
(a) Remove the fuse cover on the instrument panel.
(b) Connect the TOYOTA hand-held tester or OBD II scan tool to the Data Link Connector (DLC)3.
(c) Please refer to the TOYOTA hand-held tester or OBD II scan tool operator's manual for further details.
3. Connect timing light.
4. Inspect ignition timing.





(a) Using Special Service Tool (SST) # 09843 - 18020 or equivalent, connect terminals TE1 and E1 of the DLC1.





(b) Using a timing light, check the ignition timing.
Ignition timing: 10° Before Top Dead Center (BTDC) @ idle (w/ Cooling fan OFF and transmission in neutral position).
(c) Remove the SST from the DLC1.
5. Further check ignition timing.
Check that the ignition timing advances.
Ignition timing: 7° - 17° BTDC @ idle (w/ Cooling fan OFF and transmission in neutral position).

NOTE: The timing mark moves in a range between 7° and 17°.

6. Disconnect timing light.
7. Disconnect TOYOTA hand-held tester or OBD II scan tool.