Honda Element. Manual — part 43

seconds in 5th gear.



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

Diagnosis Details

Conditions for illuminating the indicator

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the
PCM memory. The MIL does not come on.

Conditions for clearing the DTC

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

DTC P0741 (40): ADVANCED DIAGNOSTICS

DTC P0741: TORQUE CONVERTER CLUTCH HYDRAULIC CIRCUIT STUCK OFF

Fig. 120: Torque Converter Clutch System Diagram

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

TORQUE CONVERTER CLUTCH OPERATION REFERENCE

General Description

The power transfer capacity of the torque converter clutch is controlled by the balance of automatic
transmission fluid (ATF) supplied to and discharged from the torque converter. When hydraulic pressure is
applied internally, the torque converter clutch turns ON, and when hydraulic pressure is applied from the back
pressure side, the lock-up clutch turns OFF. As the hydraulic pressure from the internal pressure side increases,
the power transfer capacity of the torque converter clutch increases. The direction of hydraulic pressure supply
is switched by shift solenoid valve E and the lock-up shift valve. ATF is supplied from the internal pressure side
to shift solenoid valve E when the signal from the powertrain control module (PCM) is ON (12 V), and ATF is
supplied from the back pressure side when it is OFF (0 V). The balance of internal pressure and back pressure is
controlled by A/T clutch pressure control solenoid valve A and the lock-up control valve. A/T clutch pressure
control solenoid valve A maximizes the power transfer capacity of the torque converter clutch when the signal
from the PCM is ON (1 A), and it minimizes the power transfer capacity of the torque converter clutch when
the signal from the PCM is OFF (0 A). If the ratio of engine speed and mainshaft speed is not about 1:1 while
the PCM is issuing the command to turn shift solenoid valve E and A/T clutch pressure control solenoid valve
A ON, the PCM detects a faulty lock-up control system and stores a DTC.

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

MONITOR DESCRIPTION

Enable Conditions

ENABLE CONDITIONS

Torque converter clutch

operation

A/T clutch pressure control solenoid valve A

ON (100 %)

OFF (0 %)

Shift solenoid valve E

ON (12 V)

Torque converter clutch: maximum
duty

Torque converter clutch
OFF

OFF (0 V) Torque converter clutch OFF

Torque converter clutch
OFF

Execution

Once per driving cycle

Sequence

None

Duration

20 seconds

DTC Type

Two drive cycles, MIL OFF, D indicator blinks

OBD Status

PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Condition

Minimum

Maximum

Engine
coolant
temperature

158 °F (70 °C)

212 °F (100 °C)

Battery
voltage

11.0 V

-

ATF
temperature

-

284 °F (140 °C)

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Malfunction Threshold

The ratio of the engine revolution to the transmission input pulse does not reach about 100% for at least 20
seconds.

Driving Pattern

1. Start the engine. Hold the engine at 3,000 rpm with no load (in park or neutral) until the radiator fan

comes on.

2. Drive the vehicle at a constant speed of 60 mph (96 km/h) for at least 20 seconds.



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

Diagnosis Details

Conditions for illuminating the indicator

When a malfunction is detected, the D indicator blinks, and the DTC and the freeze frame data are stored in the
PCM memory. The MIL does not come on.

Shift status 5th
Torque
converter
clutch

During controlling operation

No active
DTCs

P0116, P0117, P0118, P0122, P0123, P0705, P0706, P0716, P0717, P0718, P0721, P0722,
P0723, P0747, P0752, P0756, P0757, P0761, P0771, P0776, P0777, P0780, P0796, P0797,
P0962, P0963, P0966, P0967, P0970, P0971, P0973, P0974, P0976, P0977, P0979, P0980,
P0982, P0983, P0985, P0986, P1730, P1731, P1732, P1733, P1734

Other

When both the vehicle speed and the throttle position are in Enable Range

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Conditions for clearing the DTC

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

DTC P0747 (76): ADVANCED DIAGNOSTICS

DTC P0747: A/T CLUTCH PRESSURE CONTROL SOLENOID VALVE A STUCK ON

Fig. 121: A/T Clutch Pressure Control Solenoid Valves Circuit Diagram

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element