ECHO (4-Door)
- Disconnect driver's power window master switch harness connector. Connect positive lead of ammeter to terminal No. 1 (Red wire) at driver's power window master switch connector (harness side).
- Connect ammeter negative lead to negative terminal of 12-volt battery. Connect jumper wire between positive battery terminal and terminal No. 5 (Green wire) at driver's power window master switch harness connector. See Fig 3.
- As driver's window is lowered, current should be about 7 amps. When window operation is stopped, current should increase to about 14.5 amps or more. If current is as described, replace driver's power window master switch. See POWER WINDOW SWITCH under REMOVAL & INSTALLATION. If current is not as described, check and repair appropriate circuit.
Fig 1: Identifying Driver's Master Power Window Master Switch Harness Connector Terminals (Camry & Corolla)