ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description
ZERO POINT RESET
ZERO POINT RESET : Description
Always perform zero point reset using CONSULT when removing and installing the passenger seat or servicing the occupant classification system. If zero point reset is not performed the OCS may not operate normally, which may increase the risk of serious injury in a collision. Zero point reset is an initializing procedure for occupant detection sensor that must be performed when replacing or removing and installing passenger seat.
If zero point reset is not performed, the initialization is incomplete and Occupant Detection System does not operate normally.
NOTE:
ZERO POINT RESET : Special Repair Requirement
1.PERFORM ZERO POINT RESET
NOTE: When performing zero point reset, be careful of the items described as per the following:
>> GO TO 2.
2.CONFIRMATION OF SETTING
CAUTION:
When zero point reset is performed, front passenger air bag OFF indicator turns OFF.
Is condition “ALREADY PERFORMED”? YES >> Print out “ZERO POINT RESET CURRENT STATUS” screen, and inspection end.
NO >> Check condition as per the following, and perform zero point reset again.
NOTE: If “Incomplete” is displayed on “zero point reset current status”, zero point reset is not completed normally. Check the condition as per the following and perform zero point reset again.
• Passenger seat is occupied by an object.
CONFIGURATION
CONFIGURATION : Description
When replacing air bag diagnosis sensor unit, save or print current vehicle specification with CONSULT configuration before replacement.
NOTE: If “Before Replace ECU” cannot be used, use the “After Replace ECU” or “Manual Configuration” after replacing air bag diagnosis sensor unit.
CONFIGURATION : Work Procedure
CAUTION:
CONFIGURATION
Vehicle specification needs to be written with CONSULT because it is not written after replacing air bag diagnosis sensor unit.
Configuration has three functions as follows:
| Function | Description | 
| "Before Replace ECU" | 
 | 
| "After Replace ECU" | Writes the vehicle configuration with manual selection. | 
| "Select Saved Data List" | Writes the vehicle configuration with saved data. | 
CAUTION:
1.SAVING VEHICLE SPECIFICATION
 CONSULT
 CONSULT
Enter "Re/Programming, Configuration" and perform “Before Replace ECU” to save or print current vehicle specification.
NOTE: If “Before Replace ECU” cannot be used, use the "After Replace ECU" or "Manual Configuration" after replacing BCM.
>> GO TO 2.
2.REPLACE AIR BAG DIAGNOSIS SENSOR UNIT
Replace air bag diagnosis sensor unit. Refer to SR-26, "Removal and Installation".
>> GO TO 3.
3.WRITING VEHICLE SPECIFICATION
 CONSULT
 CONSULT
CAUTION: Thoroughly read and understand the vehicle specification. ECU control may not operate normally if the setting is not correct.
CAUTION: Make sure to select “Next”, confirm each setting value and press “OK” even if the indicated configuration of brand new air bag diagnosis sensor unit is same as the desirable configuration. If not, configuration which is set automatically by selecting vehicle model cannot be memorized.
>> GO TO 4.
4.OPERATION CHECK
Confirm that each function controlled by air bag diagnosis sensor unit.
>> Work End.
 Diagnosis and repair work flow
Diagnosis and repair work flow Intermittent incident
Intermittent incidentIgnition coil
   Exploded View
	Ignition coil 
	 Spark plug 
	Rocker cover
Removal and Installation
REMOVAL
	 Remove air duct assembly. Refer to EM-24, "Exploded View" .
	 Disconnect the harness connector from the ignition coil.
	 Remove the ignition coil.
	CAUTION:
 ...
   
Preparation
   Commercial Service Tool
	
		
		Tool name
		
		Description
	
	
		Ball joint remover
		
		
		Removing wheel stud
	
	
		Power tools
		
		
		Loosening nuts, screws, and bolts
	
 ...
   
U1000 CAN COMM CIRCUIT
   Description
CAN communication allows a high rate of information transmission through the 
two communication lines
(CAN-H line and CAN-L line) connecting various control units in the system. Each 
control unit transmits/
receives data but selectively reads required data only.
DTC Logic
DTC DET ...