LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2001 >> Prius >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System Self-Diagnostics >> Diagnostic Tests >> DTC P1127: Electronic Throttle Control System Actuator Power Source Circuit >> Circuit Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit Description

Constant battery voltage is supplied to +BM terminal of ECM as the power source for the Electronic Throttle Control System (ETCS). DTC is set when battery voltage does not exist at +BM terminal of ECM. If DTC P1127 exists, ECM will turn off the power to throttle control motor and throttle valve is closed by the return spring. Possible causes are:

scientia non olet · About LEMON Manuals