Subaru IMPREZA GD 2007 Series Manual page 3962

asieps_tobira_IM_US.book 21 ページ ２０１２年１月１７日 火曜日 午後３時４８分
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
5 CHECK ANTENNA CIRCUIT.
Measure the voltage between antenna harness
connector and chassis ground.
Connector & terminal
(B141) No. 14 (+) — Chassis ground (–):
6 CHECK IMMCM FUNCTION.
1) Turn the ignition switch to OFF.
2) Connect the antenna harness connector to
IMMCM.
3) Insert the key into the ignition switch, then
measure changes in voltage between the
antenna harness connectors.
Connector & terminal
(B141) No. 1 (+) — No. 14 (–):
7 CHECK IGNITION KEY (TRANSPONDER).
1) Remove the key from ignition switch.
2) Start the engine using other key which is
already registered.
Check
Is the voltage less than 1 V?
After inserting the key, is the
voltage 0 — 30 V (Approx. 0.1
second) or 0 V (Approx. 1 sec-
ond)?
Does the engine start?
IM(diag)-21
IMMOBILIZER (DIAGNOSTICS)
Yes No
Go to step 6. Replace the
antenna. <Ref. to
SL-48, Immobi-
lizer Antenna.>
Go to step 7.
Replace the
IMMCM <Ref. to
SL-47, Immobi-
lizer Control Mod-
ule.> and then
replace all ignition
keys (including the
transponder). Exe-
cute the registra-
tion procedure
next. Refer to the
"REGISTRATION
MANUAL FOR
IMMOBILIZER".
Replace the igni- Replace the
tion key (including IMMCM <Ref. to
the transponder). SL-47, Immobi-
Execute the regis- lizer Control Mod-
tration procedure ule.> and then
next. Refer to the replace all ignition
"REGISTRATION keys (including the
MANUAL FOR transponder). Exe-
IMMOBILIZER". cute the registra-
tion procedure
next. Refer to the
"REGISTRATION
MANUAL FOR
IMMOBILIZER".