Circuit Description and Diagnostic Chart
SYSTEM: Air Conditioning Cut Control CircuitWIRING DIAGRAM
CIRCUIT DESCRIPTION
This circuit cuts air conditioning operation during vehicle acceleration in order to increase acceleration performance. During acceleration with the vehicle speed at 16 mph (25 km/h) or less, engine speed at 1 200 rpm or less and throttle valve opening angle at 60 or more, the A/C magnet switch is turned OFF for several seconds.
DIAGNOSTIC PROCEDURE
1. Check voltage terminal ACT.
^ If OK check and replace engine control module.
^ If not OK proceed to step 2.
2. Check for open and short in harness and connector between ECM and A/C amplifier.
^ If OK check and replace A/C amplifier.
^ If not OK repair or replace harness or connector.