Circuit description

The ECM outputs this code if the internal error is detected in the ECM or it can not access ROM inside the ECM during ECM communication ID registration.

DTC DETECTION CONDITION

Diagnostic codes

Detecting conditions

Faulty part

Diagnostic code output check operation

B1576

Fault inside ECM (1 trip detection logic)
When it can not access ROM inside the ECM during ECM communication ID registration. (1 trip detection logic⁽¹⁾).

ECM

Engine switch is ON (IG)
Register the ECM communication ID.

⁽¹⁾	Output only when a failure is noted.

Vehicle status and failsafe upon failure detection

VEHICLE STATUS AND FAILSAFE UPON FAILURE DETECTION

Vehicle status when a problem is detected	Failsafe function when a problem is detected
The engine does not start. The ECM communication ID is not registered.	-

[Current Data Display & Save]/[System Operation Check Mode]

DIAGNOSTIC TROUBLE CODE CHART

Diagnostic codes	[Current Data Display & Save]/[System Operation Check Mode]
B1576	-