System Operation

Park

Park Clutch Application Chart

Gear	Forward (1, 2, 3, 4)	Direct (3, 5, R)	Intermediate (2, 6)	Low / Reverse (1, R)	Overdrive (4, 5, 6)	Low-OWC
Park	H
Planetary Components	Front sun	Rear sun	Rear sun	Rear carrier/center ring	Rear carrier/center ring	Rear carrier/center ring

H = Holding

Park Position Solenoid Operation Chart

Base Selector Lever Position	PCM Commanded Gear	SSA NL (1, 2, 3, 4)	SSB NH (3, 5, R)	SSC NL (2, 6)	SSD NH (1, R, 4, 5, 6)	SSE (On/Off) NC	TCC NL
P	P	Off	On	Off	Off	On	Off

NC = Normally Closed

NH = Normally High

NL = Normally Low

Powerflow

With the selector lever in PARK, the low/reverse clutch holds the rear planetary carrier/center ring gear stationary.
The park pawl holds the rear ring/front planetary carrier stationary.
The turbine shaft drives the center sun gear.

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Reverse

Reverse Clutch Application Chart

Gear	Forward (1, 2, 3, 4)	Direct (3, 5, R)	Intermediate (2, 6)	Low / Reverse (1, R)	Overdrive (4, 5, 6)	Low-OWC
Reverse	D		H
Planetary Components	Front sun	Rear sun	Rear sun	Rear carrier/center ring	Rear carrier/center ring	Rear carrier/center ring

H = Holding

D = Driving

Reverse Position Solenoid Operation Chart

Base Selector Lever Position	PCM Commanded Gear	SSA NL (1, 2, 3, 4)	SSB NH (3, 5, R)	SSC NL (2, 6)	SSD NH (1, R, 4, 5, 6)	SSE (On/Off) NC	TCC NL
R	R	Off	Off	Off	Off	On	Off

NC = Normally Closed

NH = Normally High

NL = Normally Low

Powerflow

With the selector lever in REVERSE, the low/reverse clutch holds the rear planetary carrier/center ring gear stationary.
The direct clutch drives the rear sun gear.
The rear ring/front planetary carrier transfers torque to the output hub in a reverse direction with a ratio of 2.88.

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Neutral

Neutral Clutch Application Chart

Gear	Forward (1, 2, 3, 4)	Direct (3, 5, R)	Intermediate (2, 6)	Low / Reverse (1, R)	Overdrive (4, 5, 6)	Low-OWC
Neutral	H
Planetary Components	Front sun	Rear sun	Rear sun	Rear carrier/center ring	Rear carrier/center ring	Rear carrier/center ring

H = Holding

Neutral Position Solenoid Operation Chart

Base Selector Lever Position	PCM Commanded Gear	SSA NL (1, 2, 3, 4)	SSB NH (3, 5, R)	SSC NL (2, 6)	SSD NH (1, R, 4, 5, 6)	SSE (On/Off) NC	TCC NL
N	N	Off	On	Off	Off	On	Off

NC = Normally Closed

NH = Normally High

NL = Normally Low

Powerflow

With the selector lever in NEUTRAL, the low/reverse clutch holds the rear planetary carrier/center ring gear stationary.
The turbine shaft drives the center sun gear.

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1st Gear

NOTE: The transmission operates differently in 1st gear above and below 8 kmh (5 mph). Transmission operation is the same below 8 kmh (5 mph) and in the LOW position.

1st Gear Above 8 kmh (5 mph) Clutch Application Chart

Gear	Forward (1, 2, 3, 4)	Direct (3, 5, R)	Intermediate (2, 6)	Low / Reverse (1, R)	Overdrive (4, 5, 6)	Low-OWC
1st Gear D	H	H
Planetary Components	Front sun	Rear sun	Rear sun	Rear carrier/center ring	Rear carrier/center ring	Rear carrier/center ring

H = Holding

1st Gear LOW Position and Below 8 kmh (5 mph) Clutch Application Chart

Gear	Forward (1, 2, 3, 4)	Direct (3, 5, R)	Intermediate (2, 6)	Low / Reverse (1, R)	Overdrive (4, 5, 6)	Low-OWC
1st Gear D	H	H			H
Planetary Components	Front sun	Rear sun	Rear sun	Rear carrier/center ring	Rear carrier/center ring	Rear carrier/center ring

H = Holding

1st Gear Above 8 kmh (5 mph) Solenoid Operation Chart

Base Selector Lever Position	PCM Commanded Gear	SSA NL (1, 2, 3, 4)	SSB NH (3, 5, R)	SSC NL (2, 6)	SSD NH (1, R, 4, 5, 6)	SSE (On/Off) NC	TCC NL
D	1	On	On	Off	On	Off	Off

NC = Normally Closed

NH = Normally High

NL = Normally Low

1st Gear LOW Position and Below 8 kmh (5 mph) Solenoid Operation Chart

Base Selector Lever Position	PCM Commanded Gear	SSA NL (1, 2, 3, 4)	SSB NH (3, 5, R)	SSC NL (2, 6)	SSD NH (1, R, 4, 5, 6)	SSE (On/Off) NC	TCC NL
L	1	On	On	Off	Off	On	Off

NC = Normally Closed

NH = Normally High

NL = Normally Low

Powerflow

In first gear, the forward clutch holds the front sun gear stationary.
The rear planetary carrier/center ring gear is held stationary by the low OWC and/or the low reverse (1, R) clutch.
The turbine shaft transfers torque to the center sun gear. The center sun gear transfers the torque to the center planetary carrier/front ring gear. The front ring gear transfers torque to the front planetary carrier/rear ring gear and the output hub to produce a ratio of 4.48.

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2nd Gear

2nd Gear Clutch Application Chart

Gear	Forward (1, 2, 3, 4)	Direct (3, 5, R)	Intermediate (2, 6)	Low / Reverse (1, R)	Overdrive (4, 5, 6)	Low-OWC
2nd Gear D	H	H
Planetary Components	Front sun	Rear sun	Rear sun	Rear carrier/center ring	Rear carrier/center ring	Rear carrier/center ring

H = Holding

2nd Gear Solenoid Operation Chart

Base Selector Lever Position	PCM Commanded Gear	SSA NL (1, 2, 3, 4)	SSB NH (3, 5, R)	SSC NL (2, 6)	SSD NH (1, R, 4, 5, 6)	SSE (On/Off) NC	TCC NL
D	2	On	On	On	On	Off	Off

NC = Normally Closed

NH = Normally High

NL = Normally Low

Powerflow

In second gear the forward clutch holds the front sun gear stationary.
The intermediate clutch holds the rear sun gear stationary.
The turbine shaft transfers torque to the center sun gear. The center sun gear transfers torque to the center ring gear/rear planetary carrier.
The rear planetary carrier transfers the torque to the rear ring gear/front planetary carrier and the output hub to produce a gear ratio of 2.87.

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3rd Gear

3rd Gear Clutch Application Chart

Gear	Forward (1, 2, 3, 4)	Direct (3, 5, R)	Intermediate (2, 6)	Low / Reverse (1, R)	Overdrive (4, 5, 6)	Low-OWC
3rd Gear D	H	D
Planetary Components	Front sun	Rear sun	Rear sun	Rear carrier/center ring	Rear carrier/center ring	Rear carrier/center ring

H = Holding

D = Driving

3rd Gear Solenoid Operation Chart

Base Selector Lever Position	PCM Commanded Gear	SSA NL (1, 2, 3, 4)	SSB NH (3, 5, R)	SSC NL (2, 6)	SSD NH (1, R, 4, 5, 6)	SSE (On/Off) NC	TCC NL
D	3	On	Off	Off	On	Off	Off

NC = Normally Closed

NH = Normally High

NL = Normally Low

Powerflow

In third gear the forward clutch holds the front sun gear stationary.
The direct clutch drives the rear sun gear.
Power flows from the center sun gear to the center planetary carrier/front ring gear. From there, torque is transferred to the rear ring gear/front planetary carrier.
Power also flows from the rear sun gear to the rear ring gear/front planetary carrier.
The two inputs to the front planetary carrier combine and transfer torque to the output hub to produce a gear ratio of 1.84.

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4th Gear

4th Gear Clutch Application Chart

Gear	Forward (1, 2, 3, 4)	Direct (3, 5, R)	Intermediate (2, 6)	Low / Reverse (1, R)	Overdrive (4, 5, 6)	Low-OWC
4th Gear D	H	D
Planetary Components	Front sun	Rear sun	Rear sun	Rear carrier/center ring	Rear carrier/center ring	Rear carrier/center ring

H = Holding

D = Driving

4th Gear Solenoid Operation Chart

Base Selector Lever Position	PCM Commanded Gear	SSA NL (1, 2, 3, 4)	SSB NH (3, 5, R)	SSC NL (2, 6)	SSD NH (1, R, 4, 5, 6)	SSE (On/Off) NC	TCC NL
D	4	On	On	Off	Off	Off	On/Off

NC = Normally Closed

NH = Normally High

NL = Normally Low

Powerflow

In fourth gear the forward clutch holds the front sun gear stationary.
The overdrive clutch drives the rear planetary carrier/center ring gear.
Power flows from turbine shaft to the center sun gear and center ring gear.
The two inputs to the center planetary carrier combine and transfer torque to the front ring gear.
The front ring gear transfers the torque to the front planetary carrier and onto the output hub to produce a gear ratio of 1.41.

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5th Gear

5th Gear Clutch Application Chart

Gear	Forward (1, 2, 3, 4)	Direct (3, 5, R)	Intermediate (2, 6)	Low / Reverse (1, R)	Overdrive (4, 5, 6)	Low-OWC
5th Gear D	D		D
Planetary Components	Front sun	Rear sun	Rear sun	Rear carrier/center ring	Rear carrier/center ring	Rear carrier/center ring

D = Driving

5th Gear Solenoid Operation Chart

Base Selector Lever Position	PCM Commanded Gear	SSA NL (1, 2, 3, 4)	SSB NH (3, 5, R)	SSC NL (2, 6)	SSD NH (1, R, 4, 5, 6)	SSE (On/Off) NC	TCC NL
D	5	Off	Off	Off	Off	Off	On/Off

NC = Normally Closed

NH = Normally High

NL = Normally Low

Powerflow

In fifth gear the overdrive clutch drives the rear planetary carrier/center ring gear.
The direct clutch drives the rear sun gear.
The turbine shaft transfers torque to the center sun gear, rear sun gear, and rear planetary carrier/center ring gear.
The torque from the three inputs locks the three planetary gearsets which produces a gear ratio of 1 to 1

Fail-safe Mode

Because both SSD and SSB apply the clutches they control when they are turned OFF, 5th gear is the fail-safe.

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6th Gear

6th Gear Clutch Application Chart

Gear	Forward (1, 2, 3, 4)	Direct (3, 5, R)	Intermediate (2, 6)	Low / Reverse (1, R)	Overdrive (4, 5, 6)	Low-OWC
6th Gear D	H		D
Planetary Components	Front sun	Rear sun	Rear sun	Rear carrier/center ring	Rear carrier/center ring	Rear carrier/center ring

H = Holding

D = Driving

6th Gear Solenoid Operation Chart

Base Selector Lever Position	PCM Commanded Gear	SSA NL (1, 2, 3, 4)	SSB NH (3, 5, R)	SSC NL (2, 6)	SSD NH (1, R, 4, 5, 6)	SSE (On/Off) NC	TCC NL
D	6	Off	On	On	Off	Off	On/Off

NC = Normally Closed

NH = Normally High

NL = Normally Low

Powerflow

In sixth gear the overdrive clutch drives the rear planetary carrier/center ring gear.
The intermediate clutch holds the rear sun gear.
The torque from the rear planetary carrier is transferred to the rear ring gear/front planetary carrier and the output hub which produces a gear ratio of 0.74.

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