B2791
DTC B2791 Communication Condition Failure between ECMDESCRIPTION
DTC Detection Condition:
This DTC is output when the ID code box does not respond to a verification request signal from the ECM.
HINT:
- If the engine switch is turned off immediately after the engine starts, DTC B2791 will be detected. If DTC B2791 is cleared, this DTC will not reoccur because it does not indicate a malfunction.
- If this DTC B2791 is detected simultaneously with DTC B2799, troubleshoot B2799 first.
Wiring Diagram:
Step 1:
Step 1 (Continued)-2:
INSPECTION PROCEDURE
NOTE: If the engine can be started even when DTC B2791 is output, the ID code box can be considered normal. Be sure to recheck for DTCs after clearing the DTCs.