SRS –
Post-collision Diagnosis
52B-19
POST-COLLISION DIAGNOSIS
To inspect and service the SRS after a collision (whether
or not the air bags have deployed), perform the following
steps.
SRS-ECU MEMORY CHECK
1.
Connect the MUT-
II
to the diagnosis connector (16-pin).
Caution
Make certain that the ignition switch is OFF when
the MUT-
II
is connected or disconnected.
2.
Read (and write down) all displayed diagnosis codes.
(Refer to P.52B-6.)
NOTE
If the battery power supply has been disconnected or
disrupted by the collision, the MUT-
II
cannot communicate
with the SRS-ECU. Inspect and, if necessary, repair the
body wiring harness before proceeding further.
3.
Read the data list (fault duration and how many times
memories are erased) using the MUT-
II
.
Data list
No
Service Data Item
Applicability
92
Number indicating houw often the memory is cleared
Maximum time to be stored: 250
93
How long a problem has lasted (How long it takes
from the occurrence of the problem till the first igniting
signal)
Maximum time to be stored: 9,999 minutes
(approximately 7 days)
94
How long a problem has lasted (How long it takes
from the first igniting signal till now)
4.
Erase the diagnosis codes and after waiting 5 seconds
or more read (and write down) all displayed diagnosis
codes. (Refer to P.52B-6.)