P1143
ENGINE IDLE CONTROL VOLUME1. CHECK THE VOLTAGE BETWEEN TERMINALS.
1. Disconnect the connector of engine idle control (ECU connectors remain connected).
2. Set the starter switch to "ON" (The engine is stopped).
3. Measure the voltage between + and GND terminals of engine idle control connectors (vehicle harness side).
Standard: 4.5 - 5.5 V
(After measurement, turn the starter switch to "LOCK" position.)
4. Set the starter switch to "ON" (The engine is stopped).
5. Measure the voltage between AVC4 (B23) and AGD4 (B20) terminals of ECU connector (vehicle harness side).
Standard: 4.5 - 5.5 V
(After measurement, turn the starter switch to "LOCK" position.)
6. Connect the connector of engine idle control.
7. Set the starter switch to "ON" (The engine is stopped).
8. Measure the voltage between IVS (A30) and AGD4 (B20) terminals of ECU connector (vehicle harness side).
Standard:
APPROX. 0 V: Turn control knob to left fully
APPROX. 0.7 V: Turn control knob to left.
APPROX. 4.3 V: Turn control knob to right fully
(After measurement, turn the starter switch to "LOCK" position.)
9. Set the starter switch to "ON" (The engine is stopped).
10. Measure the voltage between SIG and GND terminals of engine idle control connectors (chassis harness side).
Standard:
APPROX. 0 V: Turn idle control knob to left fully
APPROX. 0.7 V: Turn idle control knob to left.
APPROX. 4.3 V: Turn idle control knob to right fully
(After measurement, turn the starter switch to "LOCK" position.)