Code 09[009] 54c8 55c4: Hi, I Checked My Car Today ... - 2CarPros

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Code 09[009] 54c8 55c4 GIGISULAMANIDZE1

• MEMBER
• 2005 BMW X5
• 3.0L
• 6 CYL
• 4WD
• AUTOMATIC
• 192,333 MILES

Hi, I checked my car today and I pulled some trouble codes. 54c8[21704]- Class resistance at acurator. 55c4 No CAN massage DSC1. 09[009]-No CAN massage ASC. No lights on. Sunday, April 8th, 2018 AT 9:58 AM

5 Replies

STEVE W.

• MECHANIC
• 15,396 POSTS

54c8 - This code gets set commonly when the actuator clutch in the T-Case has a problem. It means that the value of resistance the actuator needs to fully engage the T-Case is different than what it actually took. The common reason is that the case has not been serviced and needs new fluid. Another cause is that the connection to the servo is corroded and the motor does not get full voltage. 55c4 - This one means the PCM is not talking to the DSC/ABS so the stability control was shut off. This is commonly a bad connection or failure of the DSC module. For both of these you need the factory scan tool to talk to the system and see if they are current codes or a history codes (likely) as you do not have a light for the case on and the ABS is working. Was this answer helpful?YesNo+4 Monday, April 9th, 2018 AT 3:43 PM GIGISULAMANIDZE1

• MEMBER
• 88 POSTS

Hi, thank you for replay. 55c4 No CAN massage DSC1. 09[009]-No CAN massage ASC. Are shadow codes. I also getting codes: EWS 0f[015) power on reset. IKE BF(191) internal fault, eeprom checksum, codding incorect/ incompete. SRS power supply, under voltage. Maybe this all codes are caused by drained battery? Was this answer helpful?YesNo+2 Monday, April 9th, 2018 AT 9:26 PM STEVE W.

• MECHANIC
• 15,396 POSTS

If the battery drained then yes you can get a lot of codes due to all the modules sending bad data. I would verify that you have full voltage now, clear the codes then see if anything returns. At the moment you will not know if the codes are the result of a fault or just because of a bad battery. Some of the newer vehicles are so sensitive to voltage issues that they will throw codes if the battery drops below 12.4 volts or so! Was this answer helpful?YesNo+5 Tuesday, April 10th, 2018 AT 2:04 AM GIGISULAMANIDZE1

• MEMBER
• 88 POSTS

I fixed problem my battary was dead Was this answer helpful?YesNo+1 Sunday, April 15th, 2018 AT 3:39 AM STEVE W.

• MECHANIC
• 15,396 POSTS

That will do it. Good to hear you got it repaired. Was this answer helpful?YesNo Sunday, April 15th, 2018 AT 3:59 AM

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