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Honda Element. Manual - part 13

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator

fan comes on.

2. Then, drive immediately at a steady speed of 35 mph (57 km/h) or more for at least 15.7 seconds.



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 ECM/PCM
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 P0141 (65): ADVANCED DIAGNOSTICS

DTC P0141: SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S (SENSOR 2))
HEATER CIRCUIT MALFUNCTION

Fig. 36: Secondary Heated Oxygen Sensor 2 Heater Circuit Diagram

General Description

A heater for the zirconia element is embedded in the secondary heated oxygen sensor (secondary HO2S), and it
is controlled by the engine control module (ECM)/powertrain control module (PCM). When activated, it heats
the sensor to stabilize and speed up the detection of oxygen content when the exhaust gas temperature is cold.

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

If the secondary HO2S heater draws other than a specified amperage, the ECM/PCM detects a malfunction and
a DTC is stored.

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

MONITOR DESCRIPTION

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

The current is 0.53 A or less, or 3.60 A or more, for at least 5 seconds when the heater is on.

Driving Pattern

Start the engine. Let it idle until the radiator fan comes on.

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 P0171 (45): ADVANCED DIAGNOSTICS

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

Battery voltage (IGP terminal of ECM/PCM)

11.0 V

16.0 V

Engine coolant temperature

41 °F (5 °C)

State of the engine

Running

No active DTCs

P0117, P0118

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

DTC P0171: FUEL SYSTEM TOO LEAN

Fig. 37: Air/Fuel Ratio - Graph

General Description

The engine control module (ECM)/powertrain control module (PCM) detects the oxygen content in the exhaust
gas from the air/fuel ratio (A/F) sensor (sensor 1) signal voltage, and it uses fuel feedback control to maintain
the optimal air/fuel ratio. The air/fuel ratio coefficient for correcting the amount of injected fuel is the short term
fuel trim. The ECM/PCM varies short term fuel trim continuously to keep the air/fuel ratio close to the
stoichiometric ratio for all driving conditions.

Long term fuel trim is computed from short term fuel trim and is used to regulate long term deviation from the
stoichiometric air/fuel ratio, which occurs when fuel metering components deteriorate with age or system
failures occur. In addition, long term fuel trim is stored in the ECM/PCM memory and is used to determine
when fuel metering components malfunction.

When long term fuel trim is higher than normal, which is about 1.0 (0 %), the amount of injected fuel must be
increased, and when lower than normal, it must be decreased. If long term fuel trim is higher than normal (too
lean), a malfunction in the fuel metering components 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

(1)

Sequence

None

Duration

Every 7 seconds

DTC Type

Two drive cycles, MIL ON

OBD Status

N/A

(1)

The malfunction judgment is cleared when it is judged as normal under the same driving conditions
in which the malfunction is detected.

Condition

Minimum

Maximum

Engine coolant

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Malfunction Threshold

Long term fuel trim is higher than 1.18 (+18 %).

Driving Pattern

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator

fan comes on.

2. Then, drive at a steady speed between 15 - 75 mph (24 - 120 km/h) for at least 15 minutes, and watch the

long term fuel trim. If the long term fuel trim stays at about 1.0, the vehicle is OK or it is a very minor
problem. If a significant fault is still present, the long term fuel trim will move up or down while driving.



When freeze frame data is stored, drive the vehicle under those conditions instead of Driving
Pattern 2.



If the EVAP monitor runs instead of the HO2S monitor, turn the engine off, then restart it, and the
HO2S monitor will restart.



After clearing the DTC by disconnecting the battery or using the scan tool, extend Driving Pattern
2 to 40 minutes or longer to allow time for long term fuel trim to recover.



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

Diagnosis Details

Conditions for illuminating the MIL

Conditions for clearing the MIL

The MIL will be cleared if the malfunction does not recur during three consecutive drive cycles in which the
engine conditions are similar to the first time the malfunction was detected.

temperature

156 °F (69 °C)

Intake air
temperature

19 °F (-7 °C)

Engine
speed

A/T

550 rpm

4,000 rpm

M/T

4,100 rpm

MAP value

20 kPa (6.0 in.Hg, 150 mmHg)

Fuel feedback Closed loop
Monitoring
priority

P0420, P0456, P0457, P0497

No active
DTCs

P0107, P0108, P0112, P0113, P0117, P0118, P0134, P0135, P0137, P0138, P0300,
P0301, P0302, P0303, P0304, P0335, P0339, P0341, P0443, P0496, P0497, P1009,
P1128, P1129, P1157, P1172, P145C, P2195, P2227, P2228, P2229, P2238, P2252,
P2270, P2271, P2646, P2646, P2647, P2647, P2648, P2649

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

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