Geely CK Series 2007 Workshop Manual page 251

II. TEST INSTRUMENTS
Instrument
III. TROUBLESHOOTING
1. Basic process of trouble diagnosis
DTC of the present fault may coexist with that of the history fault.
NOTICE:
After the new SRS ECU is installed, the warning light of the SRS, with the ignition switch ON, will be on
for 6s and then go out permanently, indicating SRS works normal. In this case, no service is needed.
Otherwise, system diagnosis and service shall be carried out.
If with the ignition switch ON, the warning light of the SRS is not on, the relevant circuits of the warning
light shall be serviced. Then go on with the operation and enable it to work.
WL Remains
ON
2. Check SRS warning light
(1) Turn the ignition switch ON and find out whether the warning light is on.
(2) Six seconds after the process of ON-OFF, confirm that the warning light goes out permanently.
(3) Otherwise, diagnosis and checking have to be involved in.
3. System Diagnosis
The SRS ECU (HAE2.5) will perform a series of circular diagnostic tests to check the readiness of the SRS
functions. This test can avoid unexpected explosion of the restrain system and in the same time ensure the
necessary explosion in a crash. If a trouble is detected, the SRS ECU (HAE2.5) will store a proper DTC and
turn on the warning light indicating a trouble for service.
244
Designation
Diagnostic detector
(Hi-DS T Scan meter)
Special diagnostic meter
Use scan meter and K line to
connect with Scan Meter ECU
Usage
Check system troubles of the SRS, and
clear the DTC of ECU
Locate a Trouble-
Trouble shooting
C l e a r
DTC