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2 Position Honda Pilot I

Automatic Transmission Diagnosis - Bvga 2 illustrations ~372 words

2 Position

The PCM controls the shift solenoid valves and the A/T clutch pressure control solenoid valves. The conditions of the shift solenoid valves and the positions of shift valves are as follows

  1. Shift solenoid valve A is turned ON, and shift valve A stays on the right side.
  2. Shift solenoid valve B is turned ON, and shift valve B stays on the right side.
  3. Shift solenoid valve C is turned OFF, and shift valve C stays on the left side.

The PCM also controls A/T clutch pressure control solenoid valve A to apply LS A pressure (56) to CPC valve A. Line pressure (4) from the manual valve becomes 2nd clutch pressure (20) at shift valve B, via shift valves C and A. 2nd clutch pressure (20) is applied to the 2nd clutch, and the 2nd clutch is engaged. The 1st clutch is also engaged. No power is transmitted because of the one-way clutch.

Note. When used, "left" or "right" indicates direction on the hydraulic circuit.

Scheme 127

Scheme 127
Scheme 127

The PCM controls the shift solenoid valves and the A/T clutch pressure control solenoid valves. The conditions of the shift solenoid valves and the positions of shift valves are as follows

  1. Shift solenoid valve A is turned ON, and shift valve A stays on the right side.
  2. Shift solenoid valve B is turned ON, and shift valve B stays on the right side.
  3. Shift solenoid valve C is turned ON, and shift valve C moves to the right side by modulator pressure (6).

The PCM also controls A/T clutch pressure control solenoid valve B to apply LS B pressure (57) to CPC valve B. Line pressure (4) from the manual valve becomes 1st clutch pressure (10) at shift valve C. 1st clutch pressure (10) is applied to the 1st clutch, and the 1st clutch is engaged. Line pressure (4) also flows to CPC valve B, and becomes CPC B pressure (4B). CPC B pressure (4B) becomes 1st-hold clutch pressure (15) at shift valve D, via shift valve C, B, and A. 1st-hold clutch pressure (15) is applied to the 1st-hold clutch, and the 1st-hold clutch is engaged.

Note. When used, "left" or "right" indicates direction on the hydraulic circuit.

Scheme 128

Scheme 128
Scheme 128