Honda Element. Manual - part 11

ENABLE CONDITIONS 

Malfunction Threshold 

One of these conditions must be met. 



The heater current is 0.8 A or more for at least 4 seconds while the heater is activated, and the heater 
current is 0.8 A or less for at least 4 seconds while the heater is not activated.  



. The heater current is 15.2 A or more for at least 0.6 second.  

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. 

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 P0137 (63): ADVANCED DIAGNOSTICS 

DTC P0137: SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S (SENSOR 2)) 
CIRCUIT LOW VOLTAGE 

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, P1157, P2195, P2238, P2252

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

Fig. 30: Secondary Heated Oxygen Sensor 2 Heater Circuit Diagram 

Fig. 31: Secondary Heated Oxygen Sensor Output Voltage - Graph 

General Description 

The secondary heated oxygen sensor (HO2S) (sensor 2) detects the oxygen content in the exhaust gas 
downstream of the three way catalytic converter (TWC) during stoichiometric air/fuel ratio feedback control 
based on the air/fuel ratio (A/F) sensor (sensor 1) output voltage. The secondary HO2S controls the air/fuel ratio 
from the A/F sensor output voltage so that the

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

TWC efficiency is optimized. 

After current is applied to the secondary HO2S heater, if the secondary HO2S output continues low (lean) 
during feedback control, 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 secondary HO2S output voltage is 0.05 V or less for at least 30 seconds. 

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 immediately at a steady engine speed between 1,500 - 3,000 rpm for at least 1 minute. 



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

Execution

Continuous

Sequence

None

Duration

30 seconds or more

DTC Type

Two drive cycles, MIL ON

OBD Status

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

Condition

Minimum

Maximum

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

15 seconds

-

Engine coolant 
temperature

156 °F (69 °C)

-

Intake air temperature

-13 °F (-25 °C)

-

Fuel trim

0.69

1.47

Fuel feedback

Closed loop

No active DTCs

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

Other

Other than at idle

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

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 P0138 (63): ADVANCED DIAGNOSTICS 

DTC P0138: SECONDARY HEATED OXYGEN SENSOR (SECONDARY HO2S (SENSOR 2)) 
CIRCUIT HIGH VOLTAGE 

Fig. 32: Secondary Heated Oxygen Sensor 2 Heater Circuit Diagram

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element