[52B] SUPPLEMENTAL RESTRAINT SYSTEM (SRS) - - TROUBLESHOOTING - DIAGNOSTIC TROUBLE CODE PROCEDURES - Code 14: Analog G-Sensor System in the SRS-ECU
Code 15: Safing G-Sensor Short Circuit
Code 16: Safing G-Sensor Open Circuit
Code 17: Safing G-Sensor for Side Air Bag Faults
Code 31: SRS-ECU Capacitor Circuit Voltage too High
Code 32: SRS-ECU Capacitor Circuit Voltage too Low
Code 45: SRS-ECU Non-Volatile Memory (EEPROM) and A/D Converter System
Code 51: Driver's Air Bag Module (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 52: Driver's Air Bag Module (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 54: Passenger’s (Front) Air Bag Module (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 55: Passenger’s (Front) Air Bag Module (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 56: Driver’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 57: Driver’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 58: Passenger’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 59: Passenger’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 73: Side Air bag Module (RH) (Squib) System Detected Short Circuit
Code 74: Side Air bag Module (RH) (Squib) System Detected Open Circuit
Code 83: Side Air bag Module (LH) (Squib) System Fault 3 for Ignition Drive Circuit
Code 84: Side Air bag Module (LH) (Squib) System Fault 4 for Ignition Drive Circuit		PRINT PAGE / INDEX / PRIOR / NEXT
Code 14: Analog G-Sensor System in the SRS-ECU
Code 15: Safing G-Sensor Short Circuit
Code 16: Safing G-Sensor Open Circuit
Code 17: Safing G-Sensor for Side Air Bag Faults
Code 31: SRS-ECU Capacitor Circuit Voltage too High
Code 32: SRS-ECU Capacitor Circuit Voltage too Low
Code 45: SRS-ECU Non-Volatile Memory (EEPROM) and A/D Converter System
Code 51: Driver's Air Bag Module (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 52: Driver's Air Bag Module (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 54: Passenger’s (Front) Air Bag Module (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 55: Passenger’s (Front) Air Bag Module (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 56: Driver’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 57: Driver’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 58: Passenger’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 59: Passenger’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 73: Side Air bag Module (RH) (Squib) System Detected Short Circuit
Code 74: Side Air bag Module (RH) (Squib) System Detected Open Circuit
Code 83: Side Air bag Module (LH) (Squib) System Fault 3 for Ignition Drive Circuit
Code 84: Side Air bag Module (LH) (Squib) System Fault 4 for Ignition Drive Circuit
DIAGNOSIS CODE SET CONDITIONS
These diagnosis codes are set when a fault is detected in the SRS-ECU. The most likely causes for this code to be set are shown in the table below:
Code No.
 Part/Circuit integral to SRS-ECU
 Trouble causes
14
 Analog G-sensor
  • 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
15
 Safing G-sensor (front air bag)
  • Short circuit in the safing G-sensor
16
  • Open circuit in the safing G-sensor
17
 Safing G-sensor (side air bag)
  • When the safing G-sensor is not operating
  • When the characteristics of the safing G-sensor are abnormal
  • When the output from the safing G-sensor is abnormal
31
 Capacitor
  • Voltage at the capacitor terminal is higher than the specified value for five seconds or more
32
  • Voltage at the capacitor terminal is lower than the specified value for five seconds or more (This is not detected if diagnosis code No.41 or 42 indicating battery positive voltage drop has been output).
45
 Non-volatile memory (EEPROM) and A/D converter
  • When the non-volatile memory (EEPROM) and A/D converter system are abnormal
51
 Driver's air bag module (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
52
  • Open circuit in the squib ignition drive circuit
54
 Front passenger's air bag module (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
55
  • Open circuit in the squib ignition drive circuit
56
 Driver’s seat belt pre-tensioner (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
57
  • Open circuit in the squib ignition drive circuit
58
 Passenger’s seat belt pre-tensioner (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
59
  • Open circuit in the squib ignition drive circuit
73
 Side air bag module (RH) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
74
  • Open circuit in the squib ignition drive circuit
83
 Side air bag module (LH) (squib ignition drive circuit)
  • Short circuit in the squib ignition drive circuit
84
  • Open circuit in the squib ignition drive circuit

PROBABLE CAUSE
  • Malfunction of the SRS-ECU
DIAGNOSIS PROCEDURE
Replace the SRS-ECU (Refer to ).
[52B] SUPPLEMENTAL RESTRAINT SYSTEM (SRS) - - TROUBLESHOOTING - DIAGNOSTIC TROUBLE CODE PROCEDURES - Code 14: Analog G-Sensor System in the SRS-ECU
Code 15: Safing G-Sensor Short Circuit
Code 16: Safing G-Sensor Open Circuit
Code 17: Safing G-Sensor for Side Air Bag Faults
Code 31: SRS-ECU Capacitor Circuit Voltage too High
Code 32: SRS-ECU Capacitor Circuit Voltage too Low
Code 45: SRS-ECU Non-Volatile Memory (EEPROM) and A/D Converter System
Code 51: Driver's Air Bag Module (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 52: Driver's Air Bag Module (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 54: Passenger’s (Front) Air Bag Module (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 55: Passenger’s (Front) Air Bag Module (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 56: Driver’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 57: Driver’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 58: Passenger’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Short Circuit
Code 59: Passenger’s Seat Belt Pre-tensioner (Squib Ignition Drive Circuit) System Detected Open Circuit
Code 73: Side Air bag Module (RH) (Squib) System Detected Short Circuit
Code 74: Side Air bag Module (RH) (Squib) System Detected Open Circuit
Code 83: Side Air bag Module (LH) (Squib) System Fault 3 for Ignition Drive Circuit
Code 84: Side Air bag Module (LH) (Squib) System Fault 4 for Ignition Drive Circuit		PRINT PAGE / INDEX / PRIOR / NEXT
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