Acura RL. Instruction — page 36

General Description

The transmission range switch is attached to the control shaft. Operating the shift lever makes the control
shaft rotate via the shift cable. The A/T gear position indicator indicates which position is selected according
to the Low/High signal combinations which vary based on shift lever position. The control shaft changes the
position of the transmission range switch, activates the manual valve, and switches hydraulic pressure to
shift the transmission through forward/neutral/reverse. The transmission range switch signal is used to
determine the shift schedule. The voltage is 12 V (High) at the powertrain control module (PCM) input
terminal when each transmission range switch position is open, and it is 0 V (Low) when each switch is
closed. If the PCM detects multiple switch inputs instead of the correct switch input for the selected range at
that time, it detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status

MONITOR DESCRIPTION CHART

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

One of these conditions occurs.

The PCM detects the selected range switch input and another range switch input simultaneously for at
least 1 second.

The PCM detects the P, R, or N range switch input and the FWD switch input simultaneously for at
least 1 second.

The PCM detects the D or D3 range switch input and the RVS switch input simultaneously for at least
1 second.

Driving Pattern

P

R

N

D

D3

FWD

RVS

P

o

X

X

X

X

X

o

R

X

o

X

X

X

X

o

N

X

X

o

X

X

X

o

D

X

X

X

o

X

o

X

D3

X

X

X

X

o

o

X

o: Closed X: Open

Execution

Continuous

Sequence

None

Duration

1 second or more

DTC Type

One drive cycle, MIL ON, D indicator blinks

OBD Status

PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Condition

Minimum

Maximum

Battery voltage

11.0 V

2007 Acura RL

2007 ENGINE PERFORMANCE Advanced Diagnostics — RL

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Friday, June 05, 2009 2:32:04 PM

Page 141 © 2005 Mitchell Repair Information Company, LLC.

Start the engine, and then place the shift lever in each position for at least 1 second.

Diagnosis Details

Conditions for illuminating the MIL

When a malfunction is detected, the MIL comes on and the DTC and the freeze frame data are stored in the
PCM memory.

Conditions for clearing the MIL

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the
diagnostic runs.

The MIL, the DTC, and the freeze frame data can be cleared by using the scan tool Clear command or by
disconnecting the battery.

DTC P0706 (6): ADVANCED DIAGNOSTICS

DTC P0706: OPEN IN TRANSMISSION RANGE SWITCH CIRCUIT

Fig. 102: Transmission Range Switch Circuit Diagram

TRANSMISSION RANGE SWITCH CONTACT POINT INPUT MATRIX

Shift lever position

Input per switch

P

R

N

D

D3

FWD

RVS

P

o

X

X

X

X

X

o

R

X

o

X

X

X

X

o

N

X

X

o

X

X

X

o

D

X

X

X

o

X

o

X

D3

X

X

X

X

o

o

X

2007 Acura RL

2007 ENGINE PERFORMANCE Advanced Diagnostics — RL

me

Friday, June 05, 2009 2:32:04 PM

Page 142 © 2005 Mitchell Repair Information Company, LLC.

General Description

The transmission range switch is attached to the control shaft. Operating the shift lever makes the control
shaft rotate via the shift cable. The A/T gear position indicator indicates which position is selected according
to the Low/High signal combinations which vary based on the control shaft rotational angle. The control
shaft changes the position of the transmission range switch, activates the manual valve, and switches
hydraulic pressure to shift the transmission through forward/neutral/reverse. The transmission range switch
signal is used to determine the shift schedule. The voltage is 12 V (High) at the powertrain control module
(PCM) input terminal when each transmission range switch position is open, and it is 0 V (Low) when each
switch is closed. If the FWD switch stays open while the vehicle repeatedly accelerates to a specified
vehicle speed and then stops despite being in the D position, the PCM detects a malfunction in the
transmission range switch (open) and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type, OBD Status

MONITOR DESCRIPTION CHART

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

No FWD position signal is detected when the vehicle speed changes from 6 mph (10 km/h) —> 25 mph (40
km/h) —> 6 mph (10 km/h) in the D or D3 position.

Driving Pattern

1. Start the engine, and accelerate to 25 mph (40 km/h) or more in the D position, then slow down to 6

mph (10 km/h).

2. Stop the vehicle, turn the ignition switch OFF, and repeat step 1.

Drive the vehicle in this manner only if the traffic regulations and ambient conditions allow.

Diagnosis Details

Conditions for illuminating the MIL

When a malfunction is detected during the first drive cycle, a Temporary DTC is stored in the PCM

o: Closed X: Open

Execution

Continuous

Sequence

None

Duration

Depending on the driving pattern

DTC Type

Two drive cycle, MIL ON, D indicator OFF

OBD Status

PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Condition

Minimum

Maximum

Battery voltage

11.0 V

No active DTCs

P0705, P0721, P0722

2007 Acura RL

2007 ENGINE PERFORMANCE Advanced Diagnostics — RL

me

Friday, June 05, 2009 2:32:04 PM

Page 143 © 2005 Mitchell Repair Information Company, LLC.

memory. If the malfunction recurs during the next (second) drive cycle, the MIL comes on and the DTC and
the freeze frame data are stored.

Conditions for clearing the MIL

The MIL will be cleared if the malfunction does not recur during three consecutive trips in which the
diagnostic runs.

The MIL, the DTC, the Temporary DTC, and the freeze frame data can be cleared by using the scan tool
Clear command or by disconnecting the battery.

DTC P0711 (28): ADVANCED DIAGNOSTICS

DTC P0711: PROBLEM IN ATF TEMPERATURE SENSOR CIRCUIT

Fig. 103: ATF Temperature Sensor Circuit Diagram

2007 Acura RL

2007 ENGINE PERFORMANCE Advanced Diagnostics — RL

me

Friday, June 05, 2009 2:32:04 PM

Page 144 © 2005 Mitchell Repair Information Company, LLC.

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