Clearing DTC's from ECM using generic scan tool

blanz · 01-04-2007, 07:36 PM

Generic Scan Tool clear command procedure, 2006-2007 Civic
(Straight from the 2006-2007 CIVIC Service Manual, vol. 1 & 2)

If you are using a generic scan tool to clear commands, be aware that there is only one setting for clearing the ECM (Engine Control Module), and it clears all commands at the same time (crank pattern learn, idle learn, readiness codes, freeze data, on-board snapshots, and DTC’s). After you clear all commands, you then need to do the following procedures, in this order, to reset the ECM and related component codes:

ECM Idle learn procedure

1. Ensure all electrical items are off
2. Clear codes with generic scan tool
3. Turn ignition switch to on, wait 2 seconds
4. Start engine, Hold engine speed at 3,000 rpm without a load until the radiator fan comes on or until the engine coolant temp. reaches 194°F
5. Let the engine idle for about 5 minutes. Note: If the radiator fan comes on, do not include its running time in the 5 minutes.

Crank pattern learn procedure (do immediately after the ECM learn procedure to save some time)

1. Test-drive vehicle on a level road: Decelerate with throttle closed from an engine speed of 2,500 rpm’s down to 1,000 rpm’s with the transmission in 1st gear.
2. Test-drive vehicle again on a level road: Decelerate with throttle closed from an engine speed of 5,000 rpm’s down to 3,000 rpm’s with the transmission in 1st gear.
3. Repeat steps one and two several times.
4. Shut car off
5. Turn ignition switch to on and wait for 30 seconds.
6. Return key to off position

Setting readiness codes

1. Start the engine and let it idle for 1 minute. Readiness code for Air fuel ratio sensor heater should switch to complete.
2. Test-drive the vehicle under stop-and-go conditions with short periods of steady cruise. Decelerate with closed throttle for five seconds. After about 5 miles the readiness codes should switch to complete for Catalytic Converter, EVAP control system and Air fuel ratio sensor monitor

Notes:
1. The ECM stays on for up to 30 minutes after the ignition key is turned off. NEVER disconnect any ECM connector without first disconnecting the negative battery cable
2. The DLC (Data Link Connector) is located under the dashboard by the drivers right leg

***airportguy770*** · 01-04-2007, 07:41 PM

Wow I never knew it was that involved, Glad to know. This might be material for a sticky, huh, how bout it mods.

mishima8 · 01-04-2007, 09:14 PM

Nice detail. I like it.

vargint · 02-05-2007, 10:37 PM

I'm a little confused. Is this the procedures to do if you clear errors with a ScanGauge II?

mishima8 · 02-05-2007, 10:50 PM

Quote:

Originally Posted by vargint

I'm a little confused. Is this the procedures to do if you clear errors with a ScanGauge II?

I may be speaking out of turn, but these are the "hard" codes that the ECU writes. Usually you need a higher end tool to clear these.

vargint · 02-05-2007, 10:56 PM

So unless someone else corrects us, none of these things need to be done if a ScanGauge is used. Great, tnx.

gus738 · 02-09-2007, 05:39 PM

blanz can a scanner clear the Engine Control Module rather then just clearing a cel? also a ECM Idle learn procedure what's the benefit of doing that or all of this,? because i was told by a very knowledgeable mechanic (dk if hes full of it ) but he said that its best not to remove the battery on this new car and newer cars unless nessary reason why because you have to do a step by step re learning programing on the car .... reason why i ask this is because he installed an aem cai and cel is up he didnt disconnect the battery so thats the only step he skiped and 2 i have not run the car 500 miles , fianly aem is also replacing the intakes but i was wondering if its just easier to just remove battery and all good rather then paying to ship current intake waiting to recieve new one and reinstalling ( possibliy paying for a install again

) please respond thanks and what's dtc?

sleeperone · 01-24-2008, 09:51 PM

you can disconnect the battery at anytime. the ecm has what it needs to run our car engines. all the ecm does when we disconnect the battery and reconnect is record our drivng habits to adjust the ecm sensor readings. (i.e the red rpm light blinking at 7k rather 7.5 k because we gun all the time).

01-04-2007, 07:36 PM	#1 (permalink)
blanz Member Join Date: Oct 2006 Location: at the Bada Bing Posts: 95 Geezer Squad member #72 iTrader: 0 / 0%	Clearing DTC's from ECM using generic scan tool Generic Scan Tool clear command procedure, 2006-2007 Civic (Straight from the 2006-2007 CIVIC Service Manual, vol. 1 & 2) If you are using a generic scan tool to clear commands, be aware that there is only one setting for clearing the ECM (Engine Control Module), and it clears all commands at the same time (crank pattern learn, idle learn, readiness codes, freeze data, on-board snapshots, and DTC’s). After you clear all commands, you then need to do the following procedures, in this order, to reset the ECM and related component codes: ECM Idle learn procedure 1. Ensure all electrical items are off 2. Clear codes with generic scan tool 3. Turn ignition switch to on, wait 2 seconds 4. Start engine, Hold engine speed at 3,000 rpm without a load until the radiator fan comes on or until the engine coolant temp. reaches 194°F 5. Let the engine idle for about 5 minutes. Note: If the radiator fan comes on, do not include its running time in the 5 minutes. Crank pattern learn procedure (do immediately after the ECM learn procedure to save some time) 1. Test-drive vehicle on a level road: Decelerate with throttle closed from an engine speed of 2,500 rpm’s down to 1,000 rpm’s with the transmission in 1st gear. 2. Test-drive vehicle again on a level road: Decelerate with throttle closed from an engine speed of 5,000 rpm’s down to 3,000 rpm’s with the transmission in 1st gear. 3. Repeat steps one and two several times. 4. Shut car off 5. Turn ignition switch to on and wait for 30 seconds. 6. Return key to off position Setting readiness codes 1. Start the engine and let it idle for 1 minute. Readiness code for Air fuel ratio sensor heater should switch to complete. 2. Test-drive the vehicle under stop-and-go conditions with short periods of steady cruise. Decelerate with closed throttle for five seconds. After about 5 miles the readiness codes should switch to complete for Catalytic Converter, EVAP control system and Air fuel ratio sensor monitor Notes: 1. The ECM stays on for up to 30 minutes after the ignition key is turned off. NEVER disconnect any ECM connector without first disconnecting the negative battery cable 2. The DLC (Data Link Connector) is located under the dashboard by the drivers right leg

02-09-2007, 05:39 PM	#7 (permalink)
gus738 Senior Member Join Date: Sep 2006 Posts: 289 iTrader: 0 / 0%	blanz can a scanner clear the Engine Control Module rather then just clearing a cel? also a ECM Idle learn procedure what's the benefit of doing that or all of this,? because i was told by a very knowledgeable mechanic (dk if hes full of it ) but he said that its best not to remove the battery on this new car and newer cars unless nessary reason why because you have to do a step by step re learning programing on the car .... reason why i ask this is because he installed an aem cai and cel is up he didnt disconnect the battery so thats the only step he skiped and 2 i have not run the car 500 miles , fianly aem is also replacing the intakes but i was wondering if its just easier to just remove battery and all good rather then paying to ship current intake waiting to recieve new one and reinstalling ( possibliy paying for a install again ) please respond thanks and what's dtc? Last edited by gus738; 02-09-2007 at 06:35 PM.

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01-04-2007, 07:41 PM	#2 (permalink)
*airportguy770* ATL Squad Lucky #7 Join Date: Jun 2006 Location: Stockbridge,GA Age: 24 Posts: 2,458 David iTrader: 7 / 100%	Wow I never knew it was that involved, Glad to know. This might be material for a sticky, huh, how bout it mods.

01-04-2007, 09:14 PM	#3 (permalink)
mishima8 Senior Member Join Date: Jul 2006 Location: PA Posts: 696 iTrader: 0 / 0%	Nice detail. I like it.

02-05-2007, 10:37 PM	#4 (permalink)
vargint Junior Member Join Date: Jan 2007 Posts: 14 iTrader: 0 / 0%	I'm a little confused. Is this the procedures to do if you clear errors with a ScanGauge II?

02-05-2007, 10:56 PM	#6 (permalink)
vargint Junior Member Join Date: Jan 2007 Posts: 14 iTrader: 0 / 0%	So unless someone else corrects us, none of these things need to be done if a ScanGauge is used. Great, tnx.

01-24-2008, 09:51 PM	#8 (permalink)
sleeperone Senior Member Join Date: Apr 2007 Location: st. augustine , FL Posts: 222 08 TW accord coupe iTrader: 0 / 0%	you can disconnect the battery at anytime. the ecm has what it needs to run our car engines. all the ecm does when we disconnect the battery and reconnect is record our drivng habits to adjust the ecm sensor readings. (i.e the red rpm light blinking at 7k rather 7.5 k because we gun all the time).

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