Subaru 2004 Forester, Service Manual

Page: 586 / 622

CC(H4DOTC 2.5)-14
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
List of Diagnostic Trouble Code (DTC)
21 Cruise control switch is
abnormal when the igni-
tion switch is turned to ON. Each switch of cruise control command switch has
already been ON when the ignition switch is turned to
ON. This DTC is indicated
without operating the main
switch. <Ref. to
CC(H4DOTC 2.5)-16,
DTC 11, 15, 21 AND 24
CRUISE CONTROL
COMMAND SWITCH,
Diagnostic Procedure with
Diagnostic Trouble Code
(DTC).>
22 Vehicle speed variation is
abnormal. Abnormality of vehicle speed variation is detected. <Ref. to CC(H4DOTC
2.5)-26, DTC 22 AND 32
VEHICLE SPEED SEN-
SOR, Diagnostic Proce-
dure with Diagnostic
Trouble Code (DTC).>
23 Engine-related sensor is
abnormal. Abnormality related to engine is detected. <Ref. to CC(H4DOTC
2.5)-2, Basic Diagnostic
Procedure.>
24 Cruise control-related
switch is abnormal. Abnormality of command switch is detected. (Open cir-
cuit is detected when continuing to be ON for an
extremely long time [approx. two minutes].) This DTC is indicated with
normal operation. <Ref. to
CC(H4DOTC 2.5)-16,
DTC 11, 15, 21 AND 24
CRUISE CONTROL
COMMAND SWITCH,
Diagnostic Procedure with
Diagnostic Trouble Code
(DTC).>
25 Brake switch input circuit
is abnormal. Abnormality of brake switch input circuit in ECM is
detected. <Ref. to CC(H4DOTC
2.5)-18, DTC 12 AND 25
STOP LIGHT SWITCH
AND BRAKE SWITCH,
Diagnostic Procedure with
Diagnostic Trouble Code
(DTC).>
26 Engine speed signal. • Abnormal increase of engine speed is detected.
• Gear is shifted to neutral, 1st or reverse position. Cruise with more than 2nd
shift position.
32 Out of vehicle speed range
of cruise control operation. • Vehicle speed becomes under the control limit during
cruise driving.
• Set operation is conducted out of vehicle speed range
for setting
• RESUME operation is conducted without vehicle
speed memory. This DTC is also indicated
when increasing the
speed to the cruise set
available vehicle speed
and conducting the set
operation again. <Ref. to
CC(H4DOTC 2.5)-26,
DTC 22 AND 32 VEHICLE
SPEED SENSOR, Diag-
nostic Procedure with
Diagnostic Trouble Code
(DTC).>
33 Prohibition of WAIT after
acceleration operation. Vehicle speed becomes over the control limit during
cruise driving. This DTC is indicated
when running at the high
speed which is not suit-
able for cruise control. In
this case, conduct the
cruise set operation again
after decreasing the
speed to the cruise set
available vehicle speed.
DTC Item Contents of diagnosis Reference