EVO: Specific Troubleshooting

General Practices & Procedures


ECM Password Learn Procedure

The TSM/TSSM modules share a password with the ECM on fuel injected bikes (and ICM's on early rubber mount bikes). When replacing an ECM/ICM or TSSM, you must go through a password learn procedure. If the procedure is not followed, the engine will start and run for a few seconds, and then stall. This will typically throw a P1009 diagnostic code.

You will typically want to connect your motorcycle up to a charger and pull the headlight fuse before starting these procedures. The procedure MUST be followed from start to finish without any interruption. If interrupted, starting over from the beginning is the only option.

For information about removing/replacing the TSM/TSSM, click this XLForum Thread by Cosmo on the topic.

Device Replaced Password Learn
Procedure Required?
1)
ECM Yes
TSM No*
TSSM Yes

*If a TSM has been replaced with a HFSM, or a HFSM has been replaced by a TSM, password is necessary.

Setting TSM/HFSM and ECM Password

Step # Action Confirmation Notes 2)
Ignition must be turned off for at least 15 seconds. With ignition turned off, Check Engine Lamp and Security Lamp will be off.
1 Install new TSM/HFSM or ECM.
2 Set RUN/OFF switch to RUN.
3 Turn IGN key ON. Verify Check Engine Lamp and Security Lamp illuminate and then turn off. TSM/HFSM enables starter relay.
4 Attempt normal start one time. Engine starts and stalls. Check Engine Lamp illuminates and stays on. Password has not been learned. ECM sets DTC P1009.
5 Wait ten seconds. Security lamp will illuminate and stay on. Security Lamp illuminates. ECM enters Password Learning mode for ten minutes. Do not cycle ignition switch or interrupt vehicle power or Password Learn will be unsuccessful.
6 Wait until Security Lamp turns off. This takes ten minutes. (If no speedo or security light is available, wait at least 10 minutes.)
7 Quickly (within two seconds) turn IGN key OFF-ON. ECM must not be allowed to shutdown.
8 Wait until Security Lamp turns off. This takes ten minutes. (If no speedo or security light is available, wait at least 10 minutes.)
9 Quickly (within two seconds) turn IGN key OFF-ON. ECM must not be allowed to shutdown.
10 Wait until Security Lamp turns off. This takes ten minutes. (If no speedo or security light is available, wait at least 10 minutes.)
11 Quickly (within two seconds) turn IGN key OFF-ON. ECM must not be allowed to shutdown.
12 Turn IGN key OFF. Wait 15 seconds before turning IGN on. Turn IGN switch ON and start engine to confirm successful Password Learn procedure. Clear diagnostic trouble codes.
13 If the learn procedure is interrupted or fails in any way, you must restart your attempt from the beginning of the procecure

(This section contributed by Screw Loose Dan )


1)
See 2007 Harley-Davidson Sportster Electrical Diagnostic Manual Section 3.25, pg 3-72
2)
See 2007 Harley-Davidson Sportster Electrical Diagnostic Manual Section 3.25, pg 3-73
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