Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 29 (ENGINE CONTROL SYSTEM (HEV) (DIAGNOSTICS) (3 OF 4))DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)DTC P1620: NO ENGINE TORQUENOTES

2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans

DTC P1620: No Engine Torque: Notes

2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION Notes

WARNING: This page is about a different car, the 2022 Subaru Crosstrek. However, it is still accessible from the selected car via links, so may be relevant.

-
DTC detecting condition:

Immediately at fault recognition

Trouble symptom:

Engine does not start

Wiring diagram:

Engine Electrical System Ref. to WIRING SYSTEM (CROSSTREK MODEL (HEV))>ENGINE ELECTRICAL SYSTEM .

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.

Courtesy of SUBARU OF AMERICA, INC.
CAUTION:
- Use the check board when measuring the ECM terminal voltage and resistance. Ref. to ENGINE (DIAGNOSTICS) (H4DO(HEV))>GENERAL DESCRIPTION>PREPARATION TOOL>HOW TO USE CHECK BOARD .
- If DTC P1620 or P1621 is detected, failsafe that stops engine drive may be triggered. In that case, motor drive is performed and SOC is reduced as HV battery is not charged. Note that READY ON is not possible if HV battery runs out due to reduction in SOC.
- Note that READY ON is not possible due to HV battery depletion caused by reduction in SOC if engine start test is repeatedly performed during reproduction check.
- If READY ON is not possible due to HV battery depletion, charge HV battery.
- DTC P300000 or P300016 of HV battery may be output due to HV battery depletion. Ref. to P-HEV HIGH VOLTAGE BATTERY (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P300000: HYBRID/EV BATTERY DISCHARGE CONTROL MALFUNCTION . Ref. to P-HEV HIGH VOLTAGE BATTERY (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)>DTC P300016: HYBRID/EV BATTERY CONTROL SYSTEM CIRCUIT VOLTAGE BELOW THRESHOLD .