LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Acura
>>
2021
>>
RDX Base
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Control System - DTC Diagnostics (P0300 - P1658)
>>
DTC Troubleshooting
>>
DTC P1658
>>
Overview
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
DTC P1658: Overview
If there is a power supply voltage input to the PCM despite the electronic throttle control system (ETCS) control relay is controlled OFF, the PCM determines an abnormality and stores the DTC.