LEMON Manuals: Even more car manuals for everyone
Home >> Lexus >> 2008 >> GX 470 >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P1442 Stuck Close in Secondary Air Injection Vacuum Switching Valve Bank 1; DTC P1445 Stuck Close in Secondary Air Injection Vacuum Switching Valve Bank 2; DTC P2441 Secondary Air Injection System Switching Valve Stuck Close Bank 1 >> Typical Enabling Conditions

Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

The monitor will run whenever these DTCs are not present P0010 - P0022 (VVT system)
P0031 - P0052 (A/F sensor heater)
P0100 - P0103 (MAF sensor)
P0110 - P0113 (IAT sensor)
P0115 - P0118 (ECT sensor)
P0120 - P0223, P2135 (TP sensor)
P0125 (Closed loop)
P0171, P0172 (Fuel trim)
P0300 - P0308 (Misfire)
P0327 - P0333 (Knock sensor)
P0335 (CKP sensor)
P0340 - P0346 (VVT sensor)
P0351 - P0358 (Ignitor)
P0455, P0456 (EVAP system)
P0450 - P0453 (EVAP press sensor)
P0500 (VSS)
P2196, P2198 (A/F sensor - rationality)
P2237, P2240 (A/F sensor (open) - sensor 1)
P2430 - P2433 (AIR pressure sensor)
P2A00, P2A03 (A/F sensor - slow response)
Atmospheric pressure 45 kPa (420 mmHg) or more
Battery voltage 11 5 V or higher
AIR monitor runs in accordance with the monitor sequence 1 to 5 -
Monitor Sequence 1
Idle ON
AIR status ON
AIR pump ON
AIR valve ON
Either of following conditions 1 or 2 is met -
1 Both of the following conditions are met -
- AIR valve bank 1 ON
- AIR valve bank 2 OFF
2 Both of the following conditions are met -
- AIR valve bank 1 OFF
- AIR valve bank 2 ON
Monitor Sequence 2
Idle ON
AIR status ON
AIR pump ON
AIR valve ON
AIR valve bank 1 ON
AIR valve bank 2 ON
Monitor Sequence 3
Engine RPM Less than 3750 rpm
AIR status ON
AIR pump ON
AIR valve ON
AIR valve bank 1 ON
AIR valve bank 2 ON
Monitor Sequence 4-1
Runs when AIR pressure did not change at monitor sequence 2
Engine RPM Less than 3750 rpm
AIR status OFF
AIR pump ON
AIR valve ON
Either of following conditions 1 or 2 is met -
1 Both of the following conditions are met -
- AIR valve bank 1 ON
- AIR valve bank 2 OFF
2 Both of the following conditions are met -
- AIR valve bank 1 OFF
- AIR valve bank 2 ON
Monitor Sequence 4-2
Engine RPM Less than 3750 rpm
AIR status OFF
AIR pump OFF
AIR valve OFF
AIR valve bank 1 OFF
AIR valve bank 2 OFF
Monitor Sequence 5
Engine RPM Less than 3750 rpm
AIR status OFF
AIR pump OFF
AIR valve ON
AIR valve bank 1 OFF
AIR valve bank 2 OFF