Inspection Procedure
- INSPECT CERTIFICATION ECU
- Disconnect the D39 certification ECU connector.
- Measure the voltage according to the value (s) in the table below.
Standard:
CERTIFICATION ECU VOLTAGETester Connection Condition Specified Condition D39-1 (+B1) - Body ground Always 10 to 14 V D39-18 (IG) - Body ground Engine switch OFF --> ON (IG) Below 1 V --> 10 to 14 V D39-19 (ACC) - Body ground Engine switch OFF --> ON (ACC) Below 1 V --> 10 to 14 V - Measure the resistance according to the value (s) in the table below.
Standard:
CERTIFICATION ECU RESISTANCETester Connection Condition Specified Condition D39-17 (E) - Body ground Always Below 1 Ω
- NG : REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR
- OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE