SRS-ECU
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
52B-11
DIAGNOSTIC TROUBLE CODE OUTPUT
The SRS-ECU diagnoses the following items and
stores a diagnostic trouble code in the non-volatile
memory (EEPROM*
1
) when a problem is detected.
Therefore, the memory is not deleted after a battery
terminal is disconnected, (The diagnostic trouble
code memory can be deleted by the scan tool.)
CODE NO. MAJOR CONTENTS OF DIAGNOSTICS
1A Front impact sensor (LH) short-circuited
1B Front impact sensor (LH) open-circuited
1C Front impact sensor (LH) short-circuited to power supply
1D Front impact sensor (LH) short-circuited to ground
2A Front impact sensor (RH) short-circuited
2B Front impact sensor (RH) open-circuited
2C Front impact sensor (RH) short-circuited to power supply
2D Front impact sensor (RH) short-circuited to ground
14 Analog G-sensor malfunction
15 Safing G-sensor short-circuited (for frontal collision)
16 Safing G-sensor open-circuited (for frontal collision)
21*
3
Driver's air bag squib short-circuited
22*
3
Driver's air bag squib open-circuited
24*
3
Passenger's (front) air bag squib short-circuited
25*
3
Passenger's (front) air bag squib open-circuited
26*
3
Driver's pre-tensioner squib short-circuited
27*
3
Driver's pre-tensioner squib open-circuited
28*
3
Passenger's (front) pre-tensioner squib short-circuited
29*
3
Passenger's (front) pre-tensioner squib open-circuited
31 SRS-ECU capacitor circuit voltage too high
32 SRS-ECU capacitor circuit voltage too low
34*
2
SRS-ECU connector lock out of order
35 Ignition of the air bag completed
39 Air bag deployed simultaneously
41*
2
Power supply voltage (IG1 (A) voltage) drops a0bnormally.
42*
2
Power supply voltage (IG1 (B) voltage) drops abnormally.
43*
2
SRS warning light circuit open-circuited
44*
2
SRS warning light circuit malfunction
45 SRS-ECU non-volatile memory (EEPROM) and A/D converter system
46*
2
Incorrect SRS-ECU
51 Driver's air bag squib activating circuit short-circuited
52 Driver's air bag squib activating circuit open-circuited
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