Subaru Impreza 2002 Service Manual page 3594

DIAGNOSTICS CHART WITH DIAGNOSTIC TROUBLE CODE (DTC)
10.Diagnostics Chart with Diagnostic Trouble Code (DTC)
A: DTC P1571 REFERENCE CODE INCOMPATIBILITY
DIAGNOSIS:
• Reference code incompatibility between IMM ECM and ECM
Step
1 PERFORM TEACHING OPERATION ON IG-
NITION KEY.
Perform teaching operation on all keys of the
vehicle. Refer to the teaching operation man-
ual.
Check
Is teaching operation for all
keys completed?
IM-17
IMMOBILIZER (DIAGNOSTICS)
Yes
END Replace the ECM
<Ref. to FU-51,
Engine Control
Module.>, <Ref. to
FU(w/oOBD)-48,
Engine Control
Module.> or <Ref.
to FU(TURBO)-49,
Engine Control
Module.>, IMM
ECM <Ref. to SL-
34, Immobilizer
Control Module.>
and then replace
all ignition keys
(including the tran-
sponder). Then
perform teaching
operation. Refer to
the teaching oper-
ation manual (Pub.
No. S0820GZ).
No