Operation CHARM: Car repair manuals for everyone.
Home >> Mitsubishi >> 1994 >> Eclipse L4-1755cc 1.8L SOHC >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Idle Speed Motor Position Sensor >> Testing and Inspection
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Idle Speed Motor Position Sensor: Testing and Inspection








CIRCUIT DIAGRAM





USING SCAN TOOL











HARNESS INSPECTION PROCEDURES

SENSOR INSPECTION
1. Disconnect the idle speed control motor position sensor connector.





2. Measure the resistance between terminals (2) and (3).

Standard value: 4 - 6 K Ohms

3. Disconnect the idle speed control motor connector.





4. Connect DC 6 Volts between terminals (1) and (2) of the idle speed control motor connector, and then measure the resistance between terminals (3) and (5) of the idle speed control motor position sensor connector when the idle speed control motor is activated (caused to expand and contract).

Standard value: Smooth increase/decrease in accordance with expansion and contraction of the idle speed control motor plunger.

Caution: Apply only a 6 Volts DC or lower Voltage. Application of higher Voltage could cause locking of the servo gears.

5. If there is a deviation from the standard value, or if the change is not smooth, replace the idle speed control motor assembly.

TROUBLESHOOTING HINTS
The idle speed may be erratic if the idle speed motor is faulty.

pro multis · About Operation CHARM