4
TROUBLESHOOTING
STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING
Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.
DIAGNOSIS FUNCTION
DIAGNOSIS CODE CHECK
Connect the MUT-II
to the diagnosis connector (16 –pin) under the instrument under cover, then check diagnosis codes.
(Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.)
ERASING DIAGNOSIS CODES
Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points.
INSPECTION CHART FOR DIAGNOSIS CODES
Inspect according to the inspection chart that is appropriate for the malfunction code.
Code No. Diagnosis ItemReference Page
14 Analog G-sensor system in the SRS-ECU 52B-6
15, 16 Front impact safing G sensor system inside SRS-ECU 52B-6
17 Side impact safing G sensor system inside SRS-ECU 52B-6
21, 22, 61, 62 Driver’s side air bag module (squib) system 52B-7
24, 25, 64, 65 Front passenger’s side air bag module (squib) system 52B-8
31, 32 SRS-ECU capacitor system 52B-8
34* Connector lock system 52B-9
35 SRS-ECU (deployed air bag) system 52B-9
41* IG1 (A) power circuit system 52B-9
42* IG1 (B) power circuit system 52B-9
Lamp does not illuminate.* 52B-1043 SRS warning lamp driver circuit system
Lamp does not switch off. 52B-10
44* SRS warning lamp drive circuit system 52B-10
45 Internal circuit system of non-volatile memory (EEPROM) inside SRS-ECU 52B-11
51, 52 Driver’s side air bag module (squib ignition drive circuit) system 52B-11
54, 55 Front passenger’s side air bag module (squib ignition drive circuit) system 52B-11
71, 72, 75, 76 Side air bag module (R.H.) (squib) system 52B-11
73, 74 Side air bag module (R.H.) (squib) ignition drive circuit system 52B-12
79, 93 Side air bag module (L.H.) communication system 52B-12
81, 82, 85, 86 Side air bag module (L.H.) (squib) system 52B-12
83, 84 Side air bag module (L.H.) (squib) ignition drive circuit system 52B-13
SRS - Troubleshooting52B-5
WHEN USING THE MUT-II
Connect the MUT-II to the diagnosis connector and erase the diagnosis code.
Caution
Turn off the ignition switch before connecting or disconnecting the MUT-II.
8
SEALANT
Item Specified sealant Remark
Sensor cable 3M ATD Part No. 8625 or equivalent Ribbon sealer
TROUBLESHOOTING
STANDARD FLOW OF DIAGNOSTIC TROUBLESHOOTING
Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.
DIAGNOSIS FUNCTION
DIAGNOSIS CODE CHECK
Connect the MUT-II
to the diagnosis connector (16 –pin) under the instrument under cover, then check diagnosis codes.
(Refer to GROUP 00 – How to Use Troubleshooting/Inspection Service Points.)
ERASING DIAGNOSIS CODES
Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points.
INSPECTION CHART FOR DIAGNOSIS CODES
Inspect according to the inspection chart that is appropriate for the malfunction code.
Code No. Diagnosis ItemReference Page
11, 12, 13 Front impact sensor system 52B-7
21, 22 Air bag module (squib) system 52B-8
31, 32 SDU capacitor system 52B-9
33* Cranking signal system 52B-10
34* Connector lock system 52B-11
41* IG1 (A) power circuit system 52B-11
42* IG1 (B) power circuit system 52B-12
43 SRS warning lamp drive circuit system
Lamp does not illuminate*52B-13
SRS warning lamp drive circuit system
Lamp does not switch off52B-14
44 SRS warning lamp drive circuit system 52B-14
45 SDU non-volatile memory (EEPROM) and A/D converter system 52B-14
NOTE
(1) *: If the vehicle condition returns to normal, the diagnosis code will be automatically erased, and the SRS warning lamp will
return to normal.
(2) If the vehicel has a discharged battery it will store the fault codes 41 or 42. When these diagnosis codes are displayed, check
the battery.
52B-6SRS – Sealant/Troubleshooting
52400060015
WHEN USING THE MUT-II
Connect the MUT-II to the diagnosis connector and erase the diagnosis code.
Caution
Turn off the ignition switch before connecting or disconnecting the MUT-II.
52400310097
52400320063
52400330123
