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Ignition Timing: RAV4

  1. Start engine and warm engine to normal operating temperature. Shut engine off. Connect timing light lead to Black/White wire in wiring harness near air cleaner assembly. See Fig 1.
  2. Apply parking brake. Place transaxle in Neutral. Note location of data link connector No. 3 at driver's side of instrument panel. See Fig 2. Install Jumper Wire (SST 09843-18040) between terminals No. 4 (CG) and 13 (TC) on data link connector No. 3. See Figure. Start engine. Engine speed should increase to 900-1500 RPM for 5 seconds and return to idle.
  3. Check ignition timing with engine idling. Timing marks are located on timing chain cover, near crankshaft pulley. Ensure base timing is within specification at idle with transaxle in Neutral, and with A/C, electric cooling fan and all accessories off. See IGNITION TIMING SPECIFICATIONS  table.
  4. Remove jumper wire from data link connector No. 3. Ensure ECM controlled timing is within specification. See IGNITION TIMING SPECIFICATIONS  table. Shut engine off. Remove timing light.
    Fig 1: Connecting Timing Light (RAV4)
    G00016685Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    Fig 2: Locating Data Link Connector No. 3 (RAV4)
    G00016677Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002