Subaru Legacy 2005 Service Manual page 4129

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
F: DTC P1576 EGI CONTROL MODULE EEPROM
DTC DETECTING CONDITION:
ECM malfunctioning
1. REPLACE ECM.
Replace the ECM. <Ref. to FU(H4SO 2.0)-34, Engine Control Module (ECM).> <Ref. to FU(H4SO 2.5)-37,
Engine Control Module (ECM).> <Ref. to FU(H4DOTC)-34, Engine Control Module (ECM).> <Ref. to
FU(H6DO)-34, Engine Control Module (ECM).>
Perform the registration procedure next. Refer to "IMMOBILIZER TEACHING OPERATION MANUAL".
G: DTC P1577 IMM CONTROL MODULE EEPROM
DTC DETECTING CONDITION:
Body integrated module malfunctioning
1. REPLACE BODY INTEGRATED MODULE
Replace the body integrated module <Ref. to SL-44, Body Integrated Module.> and replace all the ignition
keys (including transponder). Execute the registration procedure next. Refer to "IMMOBILIZER TEACHING
OPERATION MANUAL".
H: DTC P1578 METER FAILURE
DTC DETECTING CONDITION:
Reference code incompatibility between body integrated module and combination meter
1. CHECK LAN COMMUNICATION SYSTEM
Inspect LAN communication system in the following situation. <Ref. to LAN(diag)-2, Basic Diagnostic Proce-
dure.>
• DTC of body integrated module B0300, B0301, B0302, B0111 or B0321 is displayed.
• "Er IU" or "Er LC" is displayed in odo/trip meter on combination meter.
2. REPLACE COMBINATION METER.
Perform the registration of immobilizer, (refer to "IMMOBILIZER TEACHING OPERATION MANUAL".) and
the registration is completed normally, then if the engine does not start, replace the combination meter. <Ref.
to IDI-15, REMOVAL, Combination Meter.> Execute the registration procedure of all immobilizer part (com-
bination meter and etc.) next. Refer to "IMMOBILIZER TEACHING OPERATION MANUAL".
NOTE:
• When the combination meter has been replaced, be sure to perform the registration procedure of immo-
bilizer.
• Engine may not start when the combination meter which removed from the model with immobilizer to the
model without immobilizer. When installed wrong one, correct with the following procedure.
(1) Turn the ignition switch to OFF.
(2) Put back the combination meter. (Install the combination meter for the model without immobilizer.)
(3) Disconnect the ground cable from battery, and reconnect one minute later.
(4) Turn the ignition switch to START, and check that the engine starts.
• When the combination meter and body integrated module are replaced at a time, the registration proce-
dure cannot be performed. In this case, it is necessary to write an ID newly to body integrated module.
IM(diag)-25
IMMOBILIZER (DIAGNOSTICS)