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Ignition Timing

BASE IGNITION TIMING

Application Base Timing ECM Controlled Timing
Prius (2) (1)(3)(4) 8-12 (5)
(1) Check with engine at normal operating temperature, transaxle/transmission in Park, parking brake applied, and A/C and all accessories off.
(2) Read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS . Check with transit in INSPECTION MODE  and transaxle in Park.
(3) With scan tool connected to data link connector No. 3, select IGN ADVANCE from the DIAGNOSIS/ENHANCED OBD II/DATA LIST/PRIMARY menu.
(4) Ensure that ignition timing advances immediately when engine speed is increased.
(5) Information is not available from manufacturer.