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Home >> Lexus >> 2007 >> LX 470 >> Repair and Diagnosis >> Engine Performance >> Engine Control System (2UZ-FE) >> SFI System >> DTC P1613 Secondary Air Injection Driver Malfunction >> Typical Enabling Conditions

Typical Enabling Conditions

All: 

TYPICAL ENABLING CONDITIONS

The monitor will run whenever these DTCs are not present -

Case 1: 

TYPICAL ENABLING CONDITIONS

Battery voltage 8 V or more
Ignition switch ON
Starter OFF

Case 2: 

TYPICAL ENABLING CONDITIONS

Either of following conditions is met Condition 1 or 2
1. Air pump Not operating
2. Air switching valve Not operating
Battery voltage 8 V or more
Ignition switch ON
Starter OFF

Case 3: 1951 

TYPICAL ENABLING CONDITIONS

Air pump Operating
Air switching valve Operating
Battery voltage 8 V or more
Ignition switch ON
Starter OFF

Case 4: 

TYPICAL ENABLING CONDITIONS

Battery voltage 8 V or more
Ignition switch ON
Starter OFF