2004 SUBARU FORESTER Service Repair Manual

power steering mirror turn signal bulb fuse chart wiring oil type

Load previous 8 pages

Page 657 of 2870

SUBARU FORESTER 2004 Service Repair Manual IM-15
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
10.Diagnostics Procedure with Diagnostic Trouble Code (DTC)
A: DTC P1571 REFERENCE CODE INCOMPATIBILITY
DIAGNOSI

Page 658 of 2870

SUBARU FORESTER 2004 Service Repair Manual IM-16
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
B: DTC P1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA CIRCUIT)
DIAGNOSIS:
Communication failure between IMM ECM and E

Page 659 of 2870

SUBARU FORESTER 2004 Service Repair Manual IM-17
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK POWER SUPPLY CIRCUIT OF IMM
ECM.
1) Turn the ignition switch to OFF.
2) Disconnect th

IM-17
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK POWER SUPPLY CIRCUIT OF IMM
ECM.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
IMM ECM.
3) Measure the voltage between IMM ECM
harness connector terminal and chassis
ground.
Connector & terminal
(B141) No. 10, No. 11 (+) — Chassis
ground(
−):Is the voltage more than 10 V? Go to step 2.Check the harness
for open or short
between IMM
ECM and fuse.
2 CHECK IGNITION SWITCH CIRCUIT.
1) Turn the ignition switch to ON. (engine
OFF.)
2) Measure the voltage between IMM ECM
harness connector terminal and chassis
ground.
Connector & terminal
(B141) No. 12 (+) — Chassis ground(
−):Is the voltage more than 10 V? Go to step 3.Check the harness
for open or short
between IMM
ECM and ignition
switch.
3 CHECK GROUND CIRCUIT OF IMM ECM.
1) Turn the ignition switch to OFF.
2) Measure the resistance between IMM ECM
harness connector terminal and chassis
ground.
Connector & terminal
(B141) No. 2, No. 3 — Chassis ground:Is the resistance less than 10
Ω?Go to step 4.Repair the open
circuit of IMMECM
ground circuit.
4 CHECK HARNESS BETWEEN IMM ECM
AND ECM.
1) Disconnect the harness connector from
ECM and IMM ECM.
2) Measure the resistance between IMM ECM
harness connector terminal and ECM harness
connector terminal.
Connector & terminal
Non-turbo LHD model
(B141) No. 1 — (B137) No. 17:
Non-turbo RHD model
(B141) No. 1 — (B137) No. 18:
Turbo model
(B141) No. 1 — (B137) No. 19:Is the resistance less than 10
Ω?Go to step 5.Repair the open
circuit of harness
between IMM
ECM and ECM.
5 CHECK HARNESS BETWEEN IMM ECM
AND ECM.
Measure the resistance between IMM ECM
harness connector terminal and ECM harness
connector terminal.
Connector & terminal
Non-turbo LHD model
(B141) No. 6 — (B137) No. 18:
Non-turbo model
(B141) No. 6 — (B137) No. 17:
Turbo model
(B141) No. 6 — (B137) No. 27:Is the resistance less than 10
Ω?Go to step 6.Repair the open
circuit of harness
between IMM
ECM and ECM.

Page 660 of 2870

SUBARU FORESTER 2004 Service Repair Manual IM-18
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
6 CHECK HARNESS OF COMMUNICATION
LINE.
1) Turn the ignition switch to ON. (engine
OFF.)
2) Measure the voltage

Page 661 of 2870

SUBARU FORESTER 2004 Service Repair Manual IM-19
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
C: DTC P1574 KEY COMMUNICATION FAILURE
DIAGNOSIS:
Failure of IMM ECM to verify key (transponder) ID code
Step Ch

Page 662 of 2870

SUBARU FORESTER 2004 Service Repair Manual IM-20
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
D: DTC P0513 INCORRECT IMMOBILIZER KEY
DIAGNOSIS:
Use of unregistered key in IMM ECM
E: DTC P1576 EGI CONTROL MO

Page 663 of 2870

SUBARU FORESTER 2004 Service Repair Manual IM-21
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
G: DTC P1570 ANTENNA
DIAGNOSIS:
Faulty antenna
WIRING DIAGRAM:
IM-00008
21
B142IMM ECM ANTENNA
B142
12

Page 664 of 2870

SUBARU FORESTER 2004 Service Repair Manual IM-22
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK ANTENNA CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the harness antenna

IM-22
IMMOBILIZER (DIAGNOSTIC)
Diagnostics Procedure with Diagnostic Trouble Code (DTC)
Step Check Yes No
1 CHECK ANTENNA CIRCUIT.
1) Turn the ignition switch to OFF.
2) Disconnect the harness antenna connector
from IMM ECM. Antenna.>
3) Measure the resistance of antenna circuit.
Connector & terminal
(B142) No. 1 — No. 2:Is the resistance less than 10
Ω?Go to step 2.Replace the
antenna. SL-38, Immobi-
lizer Antenna.>
2 CHECK ANTENNA CIRCUIT.
Measure the resistance between antenna har-
ness connector and chassis ground.
Connector & terminal
(B142) No. 1 — Chassis ground:Is the resistance less than 10
Ω?Replace the
antenna. SL-38, Immobi-
lizer Antenna.>Go to step 3.
3 CHECK ANTENNA CIRCUIT.
Measure the resistance between antenna har-
ness connector and chassis ground.
Connector & terminal
(B142) No. 2 — Chassis ground:Is the resistance less than 10
Ω?Replace the
antenna. SL-38, Immobi-
lizer Antenna.>Go to step 4.
4 CHECK ANTENNA CIRCUIT.
1) Turn the ignition switch to ON. (engine
OFF.)
2) Measure the voltage between antenna har-
ness connector and chassis ground.
Connector & terminal
(B142) No. 1 (+) — Chassis ground(
−):Is the voltage 0 V? Go to step 5.Replace the
antenna. SL-38, Immobi-
lizer Antenna.>
5 CHECK ANTENNA CIRCUIT.
Measure the voltage between antenna har-
ness connector and chassis ground.
Connector & terminal
(B142) No. 2 (+) — Chassis ground(
−):Is the voltage 0 V? Go to step 6.Replace the
antenna. SL-38, Immobi-
lizer Antenna.>
6 CHECK IMM ECM FUNCTION.
1) Turn the ignition switch to OFF.
2) Connect the antenna harness connector to
IMM ECM.
3) Insert the key to ignition switch, measure
changes in voltage between antenna harness
connector.
Connector & terminal
(B142) No. 1 (+) — No. 2 (
−):Is the voltage −30 to 30 V?
(Approx. 0.1 second after
inserting the key)
Is the voltage 0 V?
(Approx. 1 second after insert-
ing the key)Go to step 7.Replace the IMM
ECM 37, 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).
7 CHECK IGNITION KEY (TRANSPONDER).
1) Remove the key from ignition switch.
2) Start the engine using other keys that have
undergone the teaching operation, furnished
with vehicle.Does the engine start? Replace the igni-
tion key (including
the transponder).
Then perform
teaching opera-
tion. Refer to the
teaching opera-
tion manual (Pub.
No. S0820GZ).Replace the IMM
ECM 37, 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).

Load next 8 pages

Page: < prev 1-10 ... 625-632 633-640 641-648 649-656 657-664 665-672 673-680 681-688 689-696 ... 2872 next >

change wheel fuse diagram 4WD navigation overheating fuel reserve