DTC B2600: Lin Communication

DTC detecting condition: 

No signal is received from body integrated unit for a certain period of time (2100 ms) or more. Or, signal transmission from the power seat control module is not possible for a certain period of time (2100 ms) or more.

Trouble symptom: 

• Seat operation is possible with manual operation, but not with memory function.
• Registration is possible with memory switch, but not with keyless access push button start system.
  CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to POWER SEAT MEMORY (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

1. CHECK DTC. 
   1. Turn the ignition switch to ON.
   2. Read the DTC of [Power Seat Memory] using the Subaru Select Monitor. Ref. to POWER SEAT MEMORY (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Is DTC B2600 displayed? (Current malfunction)

   YES  : Go to  2.

   NO  : Even if DTC is displayed, the circuit has returned to a normal condition at this time.

   Reproduce the failure, and perform the diagnosis again.

   NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
2. CHECK DTC. 

   Read the DTC of [Body Control] using the Subaru Select Monitor. Ref. to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Is DTC U0208 displayed? (Current malfunction)

   YES 

   Perform the diagnosis of DTC U0208. Ref. to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC U0208 LOST COMMUNICATION WITH SEAT MEMORY .

   NO  : Go to  3.

3. CHECK BODY INTEGRATED UNIT. 
   1. Turn the ignition switch to OFF.
   2. Replace with a power seat control module functioning properly. Ref. to SEATS>POWER SEAT SYSTEM .
   3. Turn the ignition switch to ON.
   4. Read the DTC of [Power Seat Memory] using the Subaru Select Monitor. Ref. to POWER SEAT MEMORY (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

Is DTC B2600 displayed? (Current malfunction)

YES 

Replace the body integrated unit. Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .

NO  : There was an abnormality in power seat control module.