DTC Description

DESCRIPTION 

DTC B00A0 OCCUPANT CLASSIFICATION SYSTEM (OCS) 

The OCS control unit is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unit will monitor the OCS for failures and interruptions in communication between the OCS control unit and the air bag diagnosis sensor unit.

DTC DETECTION LOGIC 

DTC No.	CONSULT screen items (Trouble diagnosis content)		DTC detecting condition
B00A0-00	OCCUPANT SENS [Occupant Classification System (Subfault)]	[ABNORMAL VOLTAGE]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Occupant classification system sensor signal
			Threshold	Power supply malfunction of occupant classification system sensor
			Diagnosis delay time	-
B00A0-02		[UNIT MALFUNC]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Occupant classification system sensor signal
			Threshold	Malfunction of occupant classification system sensor
			Diagnosis delay time	-
B00A0-09		[UNIT MALFUNC]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Occupant classification system sensor signal
			Threshold	Malfunction of occupant classification system sensor
			Diagnosis delay time	-
B00A0-04	OCCUPANT SENS C/U [Occupant Classification System (Subfault)]	[UNIT MALFUNC]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Occupant classification system control unit signal
			Threshold	Malfunction of occupant classification system control unit
			Diagnosis delay time	-
B00A0-83		[COMM ERR]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Occupant classification system control unit signal
			Threshold	Communication malfunction of occupant classification system control unit Communication blank of occupant classification system control unit
			Diagnosis delay time	-
B00A0-86		[COMM ERR]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Occupant classification system control unit signal
			Threshold	Communication malfunction of occupant classification system control unit Communication blank of occupant classification system control unit
			Diagnosis delay time	-
B00A0-87		[COMM ERR]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Occupant classification system control unit signal
			Threshold	Communication malfunction of occupant classification system control unit Communication blank of occupant classification system control unit
			Diagnosis delay time	-
B00A0-88		[COMM ERR]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Occupant classification system control unit signal
			Threshold	Communication malfunction of occupant classification system control unit Communication blank of occupant classification system control unit
			Diagnosis delay time	-
B00A0-8F		[UNDEFINED]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Occupant classification system control unit signal
			Threshold	Undefined status of occupant classification system control unit
			Diagnosis delay time	-
B00A0-93		[RESET]	Diagnosis condition	When ignition switch is ON.
			Signal (terminal)	Occupant classification system control unit signal
			Threshold	Reset malfunction of occupant classification system control unit
			Diagnosis delay time	-

POSSIBLE CAUSE 

[B00A0-00]

• Connection malfunction or short circuit to power supply of harness or connector
• Internal malfunction of occupant classification system sensor
• Internal malfunction of air bag diagnosis sensor unit

[B00A0-02, B00A0-09]

• Connection malfunction of harness and connector
• Internal malfunction of occupant classification system sensor
• Internal malfunction of air bag diagnosis sensor unit

[B00A0-04, B00A0-83, B00A0-86, B00A0-87, B00A0-88, B00A0-8F]

• Connection malfunction or open circuit of harness and connector
• Internal malfunction of occupant classification system control unit
• Internal malfunction of air bag diagnosis sensor unit

[B00A0-93]

• Connection malfunction of harness and connector
• Internal malfunction of occupant classification system control unit
• Internal malfunction of air bag diagnosis sensor unit

FAIL-SAFE 

-

DTC CONFIRMATION PROCEDURE 

1. CHECK SELF DIAGNOSTIC RESULT 
   1. CONSULT
      1. Ignition switch ON.
      2. Select "Self Diagnostic Result" mode of "AIR BAG".
      3. Check for DTC.

   Is the DTC detected?

   YES>>

   (Current DTC) Refer to:

   • B00A0-00, -02 or -09: DTC Diagnosis Procedure (B00A0-00, -02 or -09) .
   • B00A0-04: DTC Diagnosis Procedure (B00A0-04) .
   • B00A0-83, -86, -87, -88 or -8F: DTC Diagnosis Procedure (B00A0-83, -86, -87, -88 or -8F) .
   • B00A0-93: DTC Diagnosis Procedure (B00A0-93) .

   YES>>

   (Past DTC) GO TO 2.

   NO>>

   Inspection End.

2. ERASE SELF DIAGNOSTIC RESULT 
   1. CONSULT Erase the DTC.

   Can the DTC be erased?

   YES>>

   Inspection End.

   NO>>

   Refer to:

   • B00A0-00, -02 or -09: DTC Diagnosis Procedure (B00A0-00, -02 or -09) .
   • B00A0-04: DTC Diagnosis Procedure (B00A0-04) .
   • B00A0-83, -86, -87, -88 or -8F: DTC Diagnosis Procedure (B00A0-83, -86, -87, -88 or -8F) .
   • B00A0-93: DTC Diagnosis Procedure (B00A0-93) .

DTC CONFIRMATION PROCEDURE 

1. CHECK SELF DIAGNOSTIC RESULT 
   1. CONSULT
      1. Ignition switch ON.
      2. Check the air bag warning lamp status. Refer to Trouble Diagnosis without CONSULT .
   NOTE: SRS does not enter the diagnosis mode if no malfunction is detected in the user mode.

   Is the DTC detected?

   YES>>

   Refer to:

   • B00A0-00, -02 or -09: DTC Diagnosis Procedure (B00A0-00, -02 or -09) .
   • B00A0-04: DTC Diagnosis Procedure (B00A0-04) .
   • B00A0-83, -86, -87, -88 or -8F: DTC Diagnosis Procedure (B00A0-83, -86, -87, -88 or -8F) .
   • B00A0-93: DTC Diagnosis Procedure (B00A0-93) .

   NO>>

   Inspection End.