Honda Element. Manual — part 83

Enable Conditions

ENABLE CONDITIONS

Malfunction Threshold

The AFS-terminal voltage is 0.4 V or less for at least 5 seconds.

Driving Pattern

Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan
comes on, then let it idle for 2 minutes.

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 P2270 (63): ADVANCED DIAGNOSTICS

DTC P2270: SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S (SENSOR 2))
CIRCUIT SIGNAL STUCK LEAN

Condition

Minimum

Maximum

Engine coolant temperature

68 °F (20 °C)

-

Battery voltage

10.5 V

-

State of the engine

Running

No active DTCs

P0117, P0118, P0134, P0135, P1157, P2195, P2238

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

Fig. 239: Secondary Heated Oxygen Sensor Air Fuel Ratio - Graph

General Description

The secondary HO2S detects the oxygen concentration in the exhaust gas downstream of the three-way catalyst
(TWC).

The sensor output voltage characteristics are similar to the air/fuel ratio (A/F) sensor. The oxygen concentration
is detected after the TWC during fuel feedback control using the A/F sensor, and it optimizes the fuel feedback
control to maximize the effect of the TWC. If, after current is applied to the secondary HO2S heater, the
secondary HO2S does not fluctuate and the output is stuck within the specified area, a malfunction is detected
and a DTC is stored.

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

MONITOR DESCRIPTION

Enable Conditions

Execution

Once per driving cycle

Sequence

None

Duration

24.6 seconds or less

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

ENABLE CONDITIONS

Malfunction Threshold

The secondary HO2S output voltage is 0.650 V or less.

Driving Pattern

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

2. Drive the vehicle at a steady speed of 35 mph (57 km/h) or more for at least 24.6 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

Condition

Minimum

Maximum

Elapsed time that
secondary HO2S
activity is not monitored
after starting the engine

15 seconds

-

Elapsed time after the
fuel cut-off

-

185 seconds

Engine coolant
temperature

156 °F (69 °C)

-

Intake air temperature

-13 °F (-25 °C)

-

Engine speed

A/T

1,300 rpm

2,600 rpm

M/T

1,825 rpm

3,400 rpm

MAP value

27 kPa (7.9 in.Hg, 200 mmHg)

79 kPa (23.6 in.Hg, 600 mmHg)

Vehicle speed

30 mph (48 km/h)

-

Fuel trim

0.69

1.47

Fuel feedback

Closed loop

No active DTCs

P0010, P0011, P0101, P0102, P0103, P0107, P0108, P0111, P0112, P0113,
P0117, P0118, P0133, P0134, P0135, P0137, P0138, P0141, P0171, P0172,
P0300, P0301, P0302, P0303, P0304, P0335, P0339, P0340, P0341, P0344,
P0443, P0496, P0497, P1009, P1128, P1129, P1157, P1172, P145C, P2195,
P2238, P2252, P2646, P2647, P2648, P2649, P2A00

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

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 P2271 (63): ADVANCED DIAGNOSTICS

DTC P2271: SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S (SENSOR 2))
CIRCUIT SIGNAL STUCK RICH

Fig. 240: Secondary Heated Oxygen Sensor Air Fuel Ratio - Graph

General Description

The secondary HO2S detects the oxygen concentration in the exhaust gas downstream of the three-way catalyst
(TWC).

The sensor output voltage characteristics are similar to the air/fuel ratio (A/F) sensor. The oxygen concentration
is detected after the TWC during fuel feedback control using the A/F sensor, and it optimizes the fuel feedback
control to maximize the effect of the TWC. If, after current is applied to the secondary HO2S heater, the
secondary HO2S does not fluctuate and the output is stuck within the specified area, a malfunction is detected
and a DTC is stored.

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

2007 Honda Element EX

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element