ENGINE (J05E)/TROUBLESHOOTING
2–720
DTC: P081A
EN01H02127030602016118
P081A: Starter Disable Circuit Low
INFORMATION
1.
Technical description
•
The starter cut relay prevents further rotations of the starter when the starter key is turned after start of the engine.
<Description of malfunction>
•
Harness GND short-circuit or disconnection and relay unit failure are detected.
2.
DTC set condition
(1)
DTC detection condition
•
Engine speed of 650 r/min or more. (Request starter cut relay operation)
•
Starter key "ON".
•
Battery voltage is in the range of 10 V to 16 V.
The conditions described above remain for 5 seconds or longer.
(2)
Judgement criteria
•
Output of the starter cut relay remains at 10 V or less for 3 seconds or longer.
3.
Reset condition
•
Just after restoration to normal condition
4.
Indication, warning or system control regulation when the DTC is set.
•
MIL: OFF
•
SVS light: OFF
5.
Symptoms on the vehicle when the DTC is set
<Symptoms on the vehicle due to backup control (fail safe function)>
•
–
<Symptoms on the vehicle due to malfunction>
•
Starter operates even when the engine is running.
6.
Pre-inspection work
•
Check that the battery voltage is in the normal range.
7.
After-inspection work
•
Clear all past DTCs.
•
Check that no DTC is stored after test drive.
To starter
Starter relay
Starter cut relay
Ignition switch Neutral start switch
STA
ST
+ST
+B
+B
+B
STCR
ST1
Engine
ECU
Fuse
SHTS021270300658
