Honda Element. Manual — part 19

Fig. 49: Camshaft Position (CMP) Sensor A Circuit Diagram

General Description

Camshaft position (CMP) sensor A detects the intake camshaft timing and sends pulsing signals to the engine
control module (ECM)/powertrain control module (PCM). The ECM/PCM determines the advance or the retard
of the camshaft timing according to the signals from the crankshaft position (CKP) sensor and CMP sensor A. If
the number of pulsing signals from CMP sensor A during intervals between the CKP standard pulses is more or
less than the proper number, 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

More or less than CMP sensor A pulses is detected during intervals between the CKP standard pulses at least 30
times.

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
ECM/PCM memory.

Execution

Continuous

Sequence

None

Duration

-

DTC Type

One drive cycle, MIL ON

OBD Status

N/A

Condition

State of the engine

Running

No active DTCs

P0335, P0339, P0340

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

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 P0369 (8): ADVANCED DIAGNOSTICS

DTC P0369: CAMSHAFT POSITION (CMP) SENSOR B CIRCUIT INTERMITTENT
INTERRUPTION

Fig. 50: Camshaft Position Sensor B Circuit Diagram

General Description

The camshaft position (CMP) sensor B consists of a rotor and a semiconductor that detects rotor position. When
the rotor turns after starting the engine, the changes of magnetic flux in the semiconductor are converted into
pulsing signals to the engine control module (ECM)/powertrain control module (PCM). The CMP sensor B
detects the top dead center of each cylinder for fuel injection timing.

If CMP sensor B pulsing signals are detected an abnormal number of times due to noise, a malfunction is
detected and a DTC is stored.

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

MONITOR DESCRIPTION

Execution

Continuous

Sequence

None

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

Abnormal CMP sensor B pulsing signal is detected at least 30 times.

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
ECM/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 P0420 (67): ADVANCED DIAGNOSTICS

DTC P0420: CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD

Duration

1.2 seconds or more (when the engine speed is 750 rpm)

DTC Type

One drive cycle, MIL ON

OBD Status

N/A

Condition

State of the engine

Running

No active DTCs

P0335, P0339, P0365

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Fig. 51: Secondary HO2S Output - Graph

General Description

The three way catalytic converter (TWC) converts hydrocarbons (HC), carbon monoxide (CO), and oxides of
nitrogen (NOx) in the exhaust gas to water vapor, carbon dioxide (CO2), and dinitrogen (N2).

The TWC efficiency does not depend entirely on engine conditions or the deterioration level of the TWC. It can
be optimized by stabilizing the secondary HO2S output.

If the TWC deteriorates, the air/fuel ratio downstream of the TWC (the secondary HO2S output) often differs
from the target secondary HO2S output, and the status is represented by the parameter (SIGSQRLS).

Therefore, if the SIGSQRLS exceeds a specified value for a set time, a malfunction is detected and a DTC is
stored.

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

MONITOR DESCRIPTION

Enable Conditions

ENABLE CONDITIONS

Execution

Once per driving cycle

Sequence

None

Duration

52 seconds or more

DTC Type

Two drive cycles, MIL ON

OBD Status

PASSED/FAILED/EXECUTING/OUT OF (TEST) CONDITION

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element