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b. Fail-safe operation in the event of a mechanical system malfunction. 1. Fail-safe function The ECM controls the gear position as shown in the table below when malfunctions occur. GEAR SHIFT POSITION TABLE position S1 S2 S3 S4 SR SL1 SL2 D, S6 1st OFF ON ON OFF X OFF ON 2nd ON ON ON OFF X OFF ON 3rd ON OFF ON OFF X OFF ON 4th ON OFF OFF OFF X OFF ON 5th ON OFF OFF ON X ON OFF 6th ON ON OFF ON X ON OFF S5 1st OFF ON ON OFF X OFF ON 2nd ON ON ON OFF X OFF ON 3rd ON OFF ON OFF X OFF ON 4th ON OFF OFF OFF X OFF ON 5th ON OFF OFF ON X ON OFF S4 1st OFF ON ON OFF X OFF ON 2nd ON ON ON OFF X OFF ON 3rd ON OFF ON OFF X OFF ON 4th ON OFF OFF OFF X OFF ON S3 1st OFF ON ON OFF X OFF ON 2nd ON ON ON OFF X OFF ON 3rd (E/B) ON OFF ON OFF X OFF OFF S2 1st OFF ON ON OFF X OFF ON 2nd (E/B) ON ON ON ON X OFF OFF S1 1st (E/B) OFF ON ON OFF X OFF OFF DTC Condition Gear*1 - Normal 1st 2nd 3rd 4th 5th 6th P0751 Shift solenoid valve S1: 1st*2 1st*2 3rd 3rd 3rd 3rd P0761 Shift solenoid valve S3: 1st 2nd 3rd 3rd 3rd 3rd P0766 Shift solenoid valve S4, Shift solenoid valve SL2 or Valve 1st 2nd 3rd 3rd 3rd 3rd P0781 Valve body (1-2 shift valve): 1st*2 1st*2 3rd 3rd 3rd 3rd
2009 Toyota Tundra 2009 TRANSMISSION AB60F Automatic Transaxle - Tundra
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