Honda Element. Manual - part 64

Malfunction Threshold 

The MAP sensor output is 37 kPa (10.9 in.Hg, 277 mmHg) or more for at least 2 seconds. 

Driving Pattern 

Fig. 189: Vehicle 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. Drive the vehicle at a steady speed between 55 - 75 mph (88 - 120 km/h) for at least 10 seconds.  

3. Then, decelerate with the throttle valve fully closed for at least 2 seconds.  



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

Diagnosis Details 

Conditions for illuminating the MIL 

the VTEC system 
changes

2 seconds

-

Engine coolant 
temperature

34 °F (1 °C)

-

Engine speed

1,400 rpm

5,700 rpm

Vehicle speed

15 mph (24 km/h)

-

Fuel feedback

During deceleration

Throttle position

Fully closed

No active DTCs

P0010, P0011, P0107, P0108, P0112, P0113, P0117, P0118, P0122, P0123, P0171, 
P0172, P0222, P0223, P0300, P0301, P0302, P0303, P0304, P0341, P0443, P0496, 
P0497, P0506, P0507, P1009, P1128, P145C, P2101, P2108, P2118, P2122, P2123, 
P2127, P2128, P2135, P2138, P2176, P2646, P2647, P2648, P2649, U0107

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

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 P1157 (48): ADVANCED DIAGNOSTICS 

DTC P1157: AIR/FUEL RATIO (A/F) SENSOR (SENSOR 1) AFS CIRCUIT HIGH VOLTAGE 

Fig. 190: Air/Fuel Ratio (A/F) Sensor 1 Circuit Diagram 

General Description 

The air/fuel ratio (A/F) sensor (sensor 1) is installed in the exhaust system and detects oxygen content in the 
exhaust gas. 

The A/F sensor outputs voltage to the engine control module (ECM)/powertrain control module (PCM). A 
heater for the sensor element is embedded in the A/F sensor (sensor 1). When activated, it heats the sensor to 
stabilize and speed up the detection of oxygen content by controlling current flow through the heater. The 
current diminishes as the voltage applied to the element reaches a certain range because the amount of oxygen 
that passes through the diffusion layer is limited. The current is proportional to the oxygen content in the 
exhaust gas, so the air/fuel ratio is detected by the measurement of the current. The ECM/PCM compares the set 

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

target air/fuel ratio to the detected air/fuel ratio and adjusts the fuel injection duration. 

If the A/F sensor (sensor 1) voltage is low, the air/fuel ratio is lean, and the ECM/PCM uses A/F feedback 
control to issue a Rich command. If the A/F sensor (sensor 1) voltage is high, the air/fuel ratio is rich, and the 
ECM/PCM uses A/F feedback control to issue a Lean command. 

If the element is not activated for a set time when power is drawn by the A/F sensor (sensor 1) heater, 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 A/F sensor (sensor 1) heater element resistance is 250 ohms or more 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. 

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

5 seconds or more

DTC Type

One drive cycle, MIL ON

OBD Status

PASSED/FAILED/NOT COMPLETED (STILL TESTING)

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, P2195, P2238, P2252

Others

After applying current to the air/fuel ratio sensor (sensor 1) heater for at least 
17.5 seconds

 

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 P1172 (61): ADVANCED DIAGNOSTICS 

DTC P1172: AIR/FUEL RATIO (A/F) SENSOR (SENSOR 1) CIRCUIT OUT OF RANGE HIGH 

Fig. 191: Air/Fuel Ratio (A/F) Sensor Output Voltage - Graph 

General Description 

If a malfunction causes the air/fuel sensor value sent to the engine control module (ECM)/powertrain control 
module (PCM) to deviate from the normal control area, the air/fuel (A/F) sensor may still become active after 
the engine starts, but the air/fuel feedback does not start normally and the emissions deteriorate. When the A/F 
sensor output is out of the normal area, and this condition continues after the A/F sensor is active, the 
ECM/PCM detects a malfunction and a DTC is stored.

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element