Honda Element. Manual — part 38

DTC P0720 (122): ADVANCED DIAGNOSTICS

DTC P0720: OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR CIRCUIT MALFUNCTION
(M/T MODEL)

Fig. 103: Output Shaft (Countershaft) Speed Sensor Circuit Diagram

General Description

The output shaft (countershaft) speed sensor is attached to the transmission housing to sense output shaft
(countershaft) revolutions. The engine control module (ECM) determines the vehicle speed according to the
signal from the output shaft (countershaft) speed sensor to the control units. If no signal from the output shaft
(countershaft) speed sensor is received for a set time, the ECM detects a malfunction and a DTC is stored.

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

MONITOR DESCRIPTION

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

No signal from the output shaft (countershaft) speed sensor is detected for at least 5 seconds.

Diagnosis Details

Execution

Continuous

Sequence

None

Duration

5 seconds or more

DTC Type

One drive cycle, MIL ON

OBD Status

PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Condition

Minimum

Maximum

Engine speed

-

4,000 rpm

Battery voltage

10.0 V

-

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

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
ECM 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 P0721 (9): ADVANCED DIAGNOSTICS

DTC P0721: PROBLEM IN OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR CIRCUIT

Fig. 104: Output Shaft (Countershaft) Speed Sensor Circuit Diagram

Fig. 105: Vehicle Speed Graph

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

General Description

The output shaft (countershaft) speed sensor is attached to the outside of the transmission housing. The output
shaft (countershaft) speed sensor generates a pulsing signal according to the speed of the park gear on the output
shaft (countershaft). Using that signal, the powertrain control module (PCM) determines the speed of the output
shaft (countershaft). If pulse dropouts occur with the output shaft (countershaft) rotating, the PCM detects a
malfunction that may be caused by an open, a temporary open, or a short to ground. Based on the velocity ratio
measured by the input shaft (mainshaft) speed sensor and the output shaft (countershaft) speed sensor, a
malfunction is detected and a DTC is stored.

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

MONITOR DESCRIPTION

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

The vehicle speed measured by the input shaft (mainshaft) speed sensor/(divided by) the vehicle speed
measured by the output shaft (countershaft) speed sensor > 5.0 for at least 10 seconds.

Driving Pattern

Start the engine, and drive the vehicle at a speed of 13 mph (20 km/h) or more for at least 10 seconds.



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

Execution

Continuous

Sequence

None

Duration

10 seconds or more

DTC Type

One drive cycle, MIL ON, D indicator blinks

OBD Status

PASSED/FAILED/NOT COMPLETED (STILL TESTING)

Condition

Minimum

Maximum

Engine speed 500 rpm

-

Vehicle speed 13 mph (20 km/h)

-

Battery
voltage

11.0 V

-

Shift lever
position

D, 2, or 1

No active
DTCs

P0705, P0706, P0716, P0717, P0722, P0962, P0963, P0966, P0967, P0970, P0971,
P0973, P0974, P0976, P0977, P0979, P0980, P0982, P0983, P0985, P0986

Others

Not during shifting
Not when the shift lever is being shifted
No electrical noise in the input shaft (mainshaft) speed sensor output circuit

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

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 P0722 (9): ADVANCED DIAGNOSTICS

DTC P0722: PROBLEM IN OUTPUT SHAFT (COUNTERSHAFT) SPEED SENSOR CIRCUIT (NO
SIGNAL INPUT)

Fig. 106: Output Shaft (Countershaft) Speed Sensor Circuit Diagram

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element