DSD Information System
Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Stop And Start System - Diagnostic Codes (2 Of 3) >> Stop And Start System >> DTC P1644-00: ECU Malfunction (Starter Circuit) [11/2023 - ] >> Monitor Strategy

Monitor Strategy

Related DTCs P1644: Engine stop and start ECU internal starter relay circuit functional
Required Sensors/Components (Main) Engine stop and start ECU
Required Sensors/Components (Related) -
Frequency of Operation Continuous
Duration 1 second: Case2
0.2 seconds: Case1, Case3, Case4, Case5, Case6, Case7
MIL Operation Immediate
Sequence of Operation None