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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 87 (Engine Control System (A25A-FXS) - Diagnostic Codes (P0520-P05A2)) >> SFI System >> DTC P05A2-11: Active Grille Air Shutter "A" Circuit Short to Ground; DTC P05A2-12: Active Grille Air Shutter "A" Circuit Short to Battery; DTC P05A2-13: Active Grille Air Shutter "A" Circuit Open [12/2019 - 10/2021] >> Typical Enabling Conditions

Typical Enabling Conditions

WARNING: This page is about a different variant/trim than selected.
P05A2: ACTIVE GRILLE AIR SHUTTER MOTOR DRIVE MOSFET OPEN MONITOR (CASE 1)

Monitor runs whenever the following DTCs are not stored None
All of the following conditions are met -
Either of the following conditions is met 1 or 2
1. Both of the following conditions are met (a) and (b)
(a). Command to close active grille air shutter On
(b). Active grille air shutter close control Not operating
2. Both of the following conditions are met (c) and (d)
(c). Command to open active grille air shutter On
(d). Active grille air shutter open control Not operating
Active grille air shutter control re-try operation Off
Reverse motor control during shutter position check Not operating
Auxiliary battery voltage 10.5 to 16 V
Active grille air shutter motor drive MOSFET 1 On
Active grille air shutter motor drive MOSFET 2 Off
Active grille air shutter motor drive MOSFET 3 Off
Active grille air shutter motor drive MOSFET 4 Off
P05A2: ACTIVE GRILLE AIR SHUTTER MOTOR DRIVE MOSFET OPEN MONITOR (CASE 2)

Monitor runs whenever the following DTCs are not stored None
All of the following conditions are met -
Either of the following conditions is met 1 or 2
1. Both of the following conditions are met (a) and (b)
(a). Command to close active grille air shutter On
(b). Active grille air shutter close control Not operating
2. Both of the following conditions are met (c) and (d)
(c). Command to open active grille air shutter On
(d). Active grille air shutter open control Not operating
Active grille air shutter control re-try operation Off
Reverse motor control during shutter position check Not operating
Auxiliary battery voltage 10.5 to 16 V
Active grille air shutter motor drive MOSFET 1 Off
Active grille air shutter motor drive MOSFET 2 On
Active grille air shutter motor drive MOSFET 3 Off
Active grille air shutter motor drive MOSFET 4 Off
P05A2: ACTIVE GRILLE AIR SHUTTER MOTOR DRIVE MOSFET OPEN MONITOR (CASE 3)

Monitor runs whenever the following DTCs are not stored None
All of the following conditions are met -
Either of the following conditions is met 1 or 2
1. Both of the following conditions are met (a) and (b)
(a). Command to close active grille air shutter On
(b). Active grille air shutter close control Not operating
2. Both of the following conditions are met (c) and (d)
(c). Command to open active grille air shutter On
(d). Active grille air shutter open control Not operating
Active grille air shutter control re-try operation Off
Reverse motor control during shutter position check Not operating
Auxiliary battery voltage 10.5 to 16 V
Active grille air shutter motor drive MOSFET 1 Off
Active grille air shutter motor drive MOSFET 2 Off
Active grille air shutter motor drive MOSFET 3 On
Active grille air shutter motor drive MOSFET 4 Off
P05A2: ACTIVE GRILLE AIR SHUTTER MOTOR DRIVE MOSFET OPEN MONITOR (CASE 4)

Monitor runs whenever the following DTCs are not stored None
All of the following conditions are met -
Either of the following conditions is met 1 or 2
1. Both of the following conditions are met (a) and (b)
(a). Command to close active grille air shutter On
(b). Active grille air shutter close control Not operating
2. Both of the following conditions are met (c) and (d)
(c). Command to open active grille air shutter On
(d). Active grille air shutter open control Not operating
Active grille air shutter control re-try operation Off
Reverse motor control during shutter position check Not operating
Auxiliary battery voltage 10.5 to 16 V
Active grille air shutter motor drive MOSFET 1 Off
Active grille air shutter motor drive MOSFET 2 Off
Active grille air shutter motor drive MOSFET 3 Off
Active grille air shutter motor drive MOSFET 4 On
P05A2: ACTIVE GRILLE AIR SHUTTER CONTROL MODULE PERFORMANCE

Monitor runs whenever the following DTCs are not stored None
P05A4, P05A5

Monitor runs whenever the following DTCs are not stored None
All of the following conditions are met -
Either of the following conditions is met 1 or 2
1. Both of the following conditions are met (a) and (b)
(a). Command to close active grille air shutter On
(b). Active grille air shutter close control Not operating
2. Both of the following conditions are met (c) and (d)
(c). Command to open active grille air shutter On
(d). Active grille air shutter open control Not operating
Active grille air shutter control re-try operation Off
Reverse motor control during shutter position check Not operating
Auxiliary battery voltage 10.5 to 16 V
Active grille air shutter motor drive MOSFET 1 Off
Active grille air shutter motor drive MOSFET 2 Off
Active grille air shutter motor drive MOSFET 3 Off
Active grille air shutter motor drive MOSFET 4 Off
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