Accord L4-1955cc 2.0L SOHC 2-bbl (1986)
Idle Speed/Throttle Actuator - Electronic: Testing and Inspection
A/C Idle Control Solenoid Valve Test
Fig. 23 System checker harness terminal identification
1985---86 Accord
1.
Connect system checker harness between ECU and wire harness coupler.
2.
Start engine, then place A/C in the on position. Ensure compressor and condenser cooling fan are on.
3.
Measure voltage between terminal B1 (blue/yellow (+)) and terminal A18 (black/red (-) of system checker harness, Fig. 23. Voltage should be
0.5-1.5 volts.
4.
If voltage is greater than 9 volts, replace ECU. If no voltage is present, proceed as follows:
a. Check for open circuit in black/yellow wire between No. 11 fuse and A/C idle control solenoid valve.
b. Check for open circuit in blue/yellow wire between A/C idle control solenoid valve and ECU.
c. Check for open circuit in A/C idle control solenoid valve.
