Honda Element. Manual - part 541

Fig. 62: ECM/PCM Circuit Diagram (11 Of 12) 
Courtesy of AMERICAN HONDA MOTOR CO., INC.

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE Fuel and Emissions Systems - Element

  

Fig. 63: ECM/PCM Circuit Diagram (12 Of 12) 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

HOW TO SET READINESS CODES 

MALFUNCTION INDICATOR LAMP (MIL) INDICATION (IN RELATION TO READINESS 
CODES) 

The vehicle has certain "readiness codes" that are part of the on-board diagnostics for the emissions systems. If 
the vehicle's battery has been disconnected or gone dead, if the DTCs have been cleared, or if the ECM/PCM 

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE Fuel and Emissions Systems - Element

  

has been reset, these readiness codes are reset to incomplete. In some states, part of the emissions testing is to 
make sure these codes are set to complete. If all of them are not set to complete, the vehicle may fail the 
emission test, or the test cannot be finished. 

To check if the readiness codes are set to complete, turn the ignition switch ON (II), but do not start the engine. 
The MIL will come on for 15-20 seconds. If it then goes off, the readiness codes are set to complete. If it flashes 
five times, one or more readiness codes are not set to complete. To set readiness codes from incomplete to 
complete, do the procedure for the appropriate code. 

To check the status of a specific DTC system, check the OBD status in the DTC MENU with the HDS (see 
OBD STATUS ). This screen displays the code, the current data list of the enable criteria, and the status of the 
readiness testing. 

CATALYTIC CONVERTER MONITOR AND READINESS CODE 

Enable Criteria 



ECT SENSOR 1 at 158°F (70°C) or more.  



Intake air temperature (IAT) at 20°F (-7°C) or more.  



Vehicle speed sensor (VSS) above 25 mph (40 km/h).  

Procedure 

1. Connect the HDS to the vehicle's data link connector (DLC), and bring up the READINESS CODEs 

screen for Catalyst in the DTCs MENU.  

2. Start the engine.  

3. Test-drive the vehicle under stop-and-go conditions with short periods of steady cruise. After about 5 

miles (8 km), the readiness code should switch to complete.  

4. If the readiness code is still not set to complete, check for a Temporary DTC with the HDS. If there is no 

DTC, one or more of the enable criteria were probably not met; repeat the procedure.  

EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM MONITOR AND READINESS CODE 

NOTE:



Do not turn the ignition switch off during the procedure.  



All readiness codes are cleared when the battery is disconnected, if the 
DTCs have been cleared, or if the ECM/PCM is reset with the HDS.  



Low ambient temperatures or excessive stop-and-go traffic may increase 
the drive time needed to switch the readiness code from incomplete to 
complete.  



The readiness code will not switch to complete until all the enable criteria 
are met.  



If a fault in the secondary HO2S system caused the MIL to come on, the 
readiness code cannot be set to complete until you correct the fault.  

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE Fuel and Emissions Systems - Element

  

Enable Criteria 



Battery voltage is more than 10.5 V.  



Engine at idle.  



ECT sensor 1 and 2 between 176°F (80°C) and 212°F (100°C).  



MAP sensor less than 46.6 kPa (14 in.Hg, 350 mmHg).  



Vehicle speed 0 mph (0 km/h).  



IAT sensor between 32°F (0°C) and 212°F (100°C).  

Procedure 

1. Connect the HDS to the DLC.  

2. Start the engine.  

3. Select EVAP TEST in the INSPECTION MENU with the HDS, then select the FUNCTION TEST in the 

EVAP TEST MENU. 



If the result is normal, readiness is complete.  



If the result is not normal, go to the next step.  

4. Check for a Temporary DTC. If there is no DTC, one or more of the enable criteria were probably not 

met; repeat the procedure.  

AIR FUEL RATIO (A/F) SENSOR MONITOR AND READINESS CODE 

Enable Criteria 

ECT SENSOR 1 at 140°F (60°C) or more. 

Procedure 

1. Start the engine.  

2. Test-drive the vehicle under stop-and-go conditions with short periods of steady cruise. During the drive, 

decelerate (with the throttle fully closed) for 5 seconds. After about 3.5 miles (5.6 km), the readiness code 
should switch from incomplete to complete.  

3. Check the readiness codes screen for the AIR FUEL RATIO (A/F) SENSOR in the DTCs MENU with 

the HDS. 



If the screen shows complete, readiness is complete. 

NOTE:

All readiness codes are cleared when the battery is disconnected, if the DTCs 
have been cleared, or if the ECM/PCM is reset with the HDS.

NOTE:



Do not turn the ignition switch off during the procedure.  



All readiness codes are cleared when the battery is disconnected, if the 
DTCs have been cleared, or if the ECM/PCM is reset with the HDS.  

 

2007 Honda Element EX 

2007-2008 ENGINE PERFORMANCE Fuel and Emissions Systems - Element