Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 766

CC(diag)-25

Diagnostic Procedure with Cancel Code

CRUISE CONTROL SYSTEM (DIAGNOSTICS)

T: 63

Malfunction of vehicle speed signal variation is detected.

TROUBLE SYMPTOM:

Cruise control cannot be set. (Cancelled immediately.)

Refer to DTC 22 for diagnostic procedure.

<Ref. to CC(diag)-23, 22, Diagnostic Procedure with Cancel Code.>

U: 64

Malfunction related to engine is detected.

Refer to the Engine Diagnostic Procedure for diagnostic procedure.

<Ref. to EN(H4DOTC)(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

V: 65

Cruise control command switch malfunction is detected.

While the command switch is pressed ON for a long time (approximately two minutes), stuck ON condition

is detected.

TROUBLE SYMPTOM:

• Cruise control cannot be set. (Cancelled immediately.)

• Cruise control cannot be released.

Refer to DTC 11 for diagnostic procedure. <Ref. to CC(diag)-14, 11, Diagnostic Procedure with Cancel

Code.>

W: 66

Cruise control calculation malfunction is detected.

Refer to the Engine Diagnostic Procedure for diagnostic procedure.

<Ref. to EN(H4DOTC)(diag)-2, PROCEDURE, Basic Diagnostic Procedure.>

CC(diag)-26

Diagnostic Procedure with Cancel Code

CRUISE CONTROL SYSTEM (DIAGNOSTICS)

IM(diag)-2

Basic Diagnostic Procedure

IMMOBILIZER (DIAGNOSTICS)

1. Basic Diagnostic Procedure

A: PROCEDURE

Step

Check

Yes

CHECK SECURITY INDICATOR LIGHT.
1) Turn the ignition switch to “OFF” or “ACC”.
2) Wait at least 60 seconds.

Does the security indicator light
blink?

Go to step

Check the security
indicator light cir-
cuit. <Ref. to
IM(diag)-11,
CHECK SECU-
RITY INDICATOR
LIGHT CIRCUIT,
INSPECTION,
Diagnostics Chart
for Security Indica-
tor Light.>

CHECK KEY SWITCH.
Remove the key from ignition switch.

Does the security indicator light
begin to blink within 1 second
after the key is removed?

Go to step

Check the key
switch circuit.
<Ref. to IM(diag)-
13, CHECK KEY
SWITCH CIRCUIT,
INSPECTION,
Diagnostics Chart
for Security Indica-
tor Light.>

CHECK SECURITY INDICATOR LIGHT.
Turn the ignition switch to ON.

Does the security indicator light
go off?

Go to step

CHECK ENGINE START.
Turn the ignition switch to START.

Does the starter operate?

Check the LAN
communication
system. <Ref. to
LAN(diag)-2, Basic
Diagnostic Proce-
dure.>

Go to step

CHECK ENGINE START.
Turn the ignition switch to START.

Does the starter operate?

Go to step

Check the LAN
communication
system. <Ref. to
LAN(diag)-2, Basic
Diagnostic Proce-
dure.>

CHECK ENGINE START.
Turn the ignition switch to START.

Does the engine start?

Immobilizer sys-
tem is normal.

Go to step

CHECK DTC.
1) Turn the ignition switch to OFF.
2) Connect the Subaru Select Monitor to data
link connector. <Ref. to IM(diag)-8, Subaru
Select Monitor.>
3) Turn the ignition switch and Subaru Select
Monitor switch to ON.
4) Read the DTC of the body integrated unit.

Is the DTC displayed on
screen?

Go to step

10.

Replace the body
integrated unit.
<Ref. to SL-48,
Body Integrated
Unit.> Register all
ignition keys (tran-
sponders). Refer to
the “REGISTRA-
TION MANUAL
FOR IMMOBI-
LIZER”.