Honda Element. Manual - part 26

 

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Honda Element. Manual - part 26

 

 

Fig. 70: Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Diagram 

General Description 

The fuel level sensor (fuel gauge sending unit) is incorporated into the fuel pump and installed in the fuel tank. 
Using a built-in potentiometer and float, it converts the movement of the float to electrical signals as an output 
that corresponds to fuel level variations in the fuel tank. The fuel level, which is indicated by the gauge control 
module, is sent to the engine control module (ECM)/powertrain control module (PCM) via the controller area 
network (CAN). If the ECM/PCM detects a signal from the fuel level sensor (fuel gauge sending unit) below a 
predetermined value for a set time or more, it detects a malfunction and stores a DTC. 

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

MONITOR DESCRIPTION 

Enable Conditions 

ENABLE CONDITIONS 

Execution

Continuous

Sequence

None

Duration

5 seconds or more

DTC Type

One drive cycle, MIL OFF

OBD Status

N/A

Condition

 

Ignition switch

ON

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

Malfunction Threshold 

The fuel level sensor (fuel gauge sending unit) output voltage is 0.10 V or less for at least 5 seconds. 

Diagnosis Details 

Conditions for illuminating the indicator 

When a malfunction is detected, the DTC and the freeze frame data are stored in the ECM/PCM memory. The 
MIL does not come on. 

Conditions for clearing the DTC 

The DTC and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting 
the battery. 

DTC P0463 (121): ADVANCED DIAGNOSTICS 

DTC P0463: FUEL LEVEL SENSOR (FUEL GAUGE SENDING UNIT) CIRCUIT HIGH VOLTAGE 

Fig. 71: Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Diagram 

General Description 

No active DTCs

P0463, U0028, U0155

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

The fuel level sensor (fuel gauge sending unit) is incorporated into the fuel pump and installed in the fuel tank. 
Using a built-in potentiometer and float, it converts the movement of the float to electrical signals as an output 
that corresponds to fuel level variations in the fuel tank. The fuel level, which is indicated by the gauge control 
module, is sent to the engine control module (ECM)/powertrain control module (PCM) via the controller area 
network (CAN). If the ECM/PCM detects a signal from the fuel level sensor (fuel gauge sending unit) above a 
predetermined value for a set time or more, it detects a malfunction and stores a DTC. 

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

MONITOR DESCRIPTION 

Enable Conditions 

ENABLE CONDITIONS 

Malfunction Threshold 

The fuel level sensor (fuel gauge sending unit) output voltage is 4.92 V or more for at least 5 seconds. 

Diagnosis Details 

Conditions for illuminating the indicator 

When a malfunction is detected, the DTC and the freeze frame data are stored in the ECM/PCM memory. The 
MIL does not come on. 

Conditions for clearing the DTC 

The DTC and the freeze frame data can be cleared by using the scan tool Clear command or by disconnecting 
the battery. 

DTC P0496 (92): ADVANCED DIAGNOSTICS 

DTC P0496: EVAPORATIVE EMISSION (EVAP) SYSTEM HIGH PURGE FLOW 

Execution

Continuous

Sequence

None

Duration

5 seconds or more

DTC Type

One drive cycle, MIL OFF

OBD Status

N/A

Condition

 

Ignition switch

ON

No active DTCs

P0462, U0028, U0155

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

Fig. 72: Evaporative Emission (EVAP) System Purge Flow 

General Description 

The fuel (vapor) vaporized in the fuel tank is stored in the canister temporarily and introduced in the engine 
through the evaporative emission (EVAP) canister purge valve. The engine control module (ECM)/powertrain 
control module (PCM) controls the vapor amount introduced in the engine by repeating switching the power of 
the EVAP canister purge valve at a constant frequency according to the condition of the engine. 

< STEP 1 > 

The EVAP canister purge valve drives normally (EVAP canister purge valve OPEN OK) and detects that the 
purge flow is normal when the pulse of the EVAP canister purge valve drive cycle is transmitted to fuel tank 
pressure (FTP) sensor by the purge flow (pulse method). 

OK determination: Pulse exists (P145C OK) 

P0497 Purge flow OK  

P0496 EVAP canister purge valve Open fix OK  

NG determination: No pulse (P145C NG) 

Either purge flow P0497 abnormality or P0496 EVAP canister purge valve OPEN failure.  

In this case, classify the failure part according to < STEP 2 >.  

< STEP 2 > 

In case there is no pulse, it is determined either no purge flow or EVAP canister purge valve OPEN fix as 
follows: 

When the FTP sensor fluctuates from negative pressure condition to atmospheric pressure side after the ignition 
is turned off: P0496 EVAP canister purge valve OPEN fix

 

2007 Honda Element EX 

2007 ENGINE PERFORMANCE Advanced Diagnostics - Element

  

 

 

 

 

 

 

 

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