21
INSPECTION PROCEDURE CLASSIFIED BY DIAGNOSTIC TROUBLE
Code No. 14 Analog G-sensor system in the SRS-ECU Probable cause
The SRS-ECU monitors the output of the analog G-sensor inside the SRS-ECU. It
outputs this code when any of the following are detected
·
When the analog-G sensor is not operating
·
When the characteristics of the analog-G sensor are abnormal
·
When the output from the analog G-sensor is abnormal·
Malfunction of SRS-ECU
Replace the SRS-ECU
Code No.15 or 16 Safing G-sensor system in the SRS-ECU Probable cause
This code is output if there is a short or open circuit between the terminals of the
safing G-sensor inside the SRS-ECU.
The trouble causes for each diagnosis code No. Are as follows·
Malfunction of SRS-ECU
Code No. Trouble Symptom
15 Short circuit in the safing G-sensor
16 Open circuit in the safing G-sensor
Replace the SRS-ECU
Code No. 21, 22 or 61 Air bag module (driver’s side squib)
systemProbable cause
These diagnosis codes are output if there is abnormal resistance between the input
terminals of the air bag module (driver’s side squib).
The trouble causes for each code No. are as follows·
Malfunction of clock spring
·
Open-circuit in clock spring due to inappropriate neutral
position
·
Malfunction of harnesses or connectors
·
Malfunction of air bag module (driver’s side squib)
·
Malfunction of SRS-ECU
SRS - Troubleshooting52B-6
M
B9913 94 P
in s e t Rem ova l a nd in sta ll a tio n o f th e lo ck n ut M
B9912 03 O
il s e a l &
b earin g in sta ll e r T
o p re ss in th e v a lv e h ousin g o il s e a l a n d
b earin g M
B9909 56 Need le b earin g
i n sta lle r M
B9911 72 A
da pte r T
o p re ss in th e d riv e s h aft a sse m bly M
B9907 67 E
nd y o rk h old er M
B9987 19 o r
M D99 875 4 C
ra nksh aft p ulle y
h old er p in S
ecu rin g t h e d riv e p ulle y
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.
