CC(H4DOTC 2.5)-27
CRUISE CONTROL SYSTEM (DIAGNOSTIC)
Diagnostic Procedure with Diagnostic Trouble Code (DTC)
Step
Check
Yes
No
1
CHECK TRANSMISSION TYPE.
Is the target MT model?
2
CHECK HARNESS BETWEEN BATTERY
AND VEHICLE SPEED SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
vehicle speed sensor.
3) Turn the ignition switch to ON.
4) Measure the voltage between vehicle
speed sensor harness connector terminal and
chassis ground.
Connector & terminal
(B17) No. 3 (+) — Chassis ground (
−
):
Is the voltage more than 10 V? Go to step
Check the harness
for open or short
between fuse and
vehicle speed sen-
sor.
3
CHECK HARNESS BETWEEN ECM AND VE-
HICLE SPEED SENSOR.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
ECM.
3) Measure the resistance between vehicle
speed sensor harness connector terminal and
ECM harness connector terminal.
Connector & terminal
(B17) No. 1 — (B135) No. 26:
Is the resistance less than 10
Ω
?
Repair the har-
ness.
4
CHECK HARNESS BETWEEN VEHICLE
SPEED SENSOR AND ENGINE GROUND.
1) Turn the ignition switch to OFF.
2) Measure the resistance between vehicle
speed sensor harness connector terminal and
engine ground.
Connector & terminal
(B17) No. 2 — Engine ground:
Is the resistance less than 10
Ω
?
Repair the har-
ness.
5
CHECK VEHICLE SPEED SENSOR.
1) Connect the harness connector to vehicle
speed sensor.
2) Lift-up the vehicle and support with rigid
racks.
3) Drive the vehicle at speed greater than 20
km/h (12 MPH).
Warning:
Be careful not to be caught up by the run-
ning wheels.
4) Measure the voltage between ECM har-
ness connector terminal and chassis ground.
Connector & terminal
(B135) No. 26 (+) — Chassis ground (
−
):
Is the voltage 1 V
←
→
5 V?
Check the poor
contact of ECM
connector.
Replace the vehi-
cle speed sensor.
6
CHECK HARNESS BETWEEN ECM AND
TCM.
1) Turn the ignition switch to OFF.
2) Disconnect the harness connector from
ECM and TCM.
3) Measure the resistance between ECM har-
ness connector terminal and TCM harness
connector terminal.
Connector & terminal
(B135) No. 26 — (B56) No. 1:
Is the resistance less than 10
Ω
?
Repair the har-
ness.
Содержание 2004 Forester
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