Toyota Corolla (E120): Source voltage drop

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Mass or volume air flow circuit
Dtc p0100 mass or volume air flow circuit Dtc p0102 mass or volume air flow circuit low input Dtc p0103 mass or volume air flow circuit high input Circuit description The maf (mass air flow) sensor measures the amount of air flowing through the throttle valve. The ecm uses this information ...

Inspection procedure
1 Check courtesy lamp switch Check the courtesy switch, as shown in the illustration and table. Standard: 2 Check wire harness (integration relay  door courtesy sw) Disconnect the integration relay and door courtesy connectors.  check the continuity between th ...

Replacement
1. Remove battery 2. Remove battery carrier Remove the 4 bolts and battery carrier. 3. Disconnect floor shift cable transmission control shift Remove the nut from the control shaft lever.  disconnect the control cable from the control shaft lever.  remove the clip a ...