A/T Interlock Control Unit Input Test (KS)

KS Model


1.Disconnect interlock control unit connector.

2.Inspect the connector and connector terminals to be sure they are making good contact.

3.If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.

4.Turn the ignition switch ACC(I).

5.Measure the voltage between interlock control unit connector terminal No. 1 and body ground.
There should be voltage. If there is no voltage, check for a blown No. 8 (7.5A) fuse in the under-dash fuse/relay box, a key lock solenoid defect, or an open or a short in the wire.

 

6.Measure the voltage between interlock control unit connector terminal No. 3 and body ground.
There should be voltage. If there is no voltage, check for a blown No. 8 (7.5A) fuse, a shift lock solenoid defect, or an open or a short in the wire.

7.Measure the voltage between interlock control unit connector terminal No. 5 and body ground.
There should be battery voltage. If there is no voltage, check for a blown No. 8 (7.5A) fuse or an open or a short in the wire.

8.Turn the ignition switch ON(II), and shift the shift lever in [P] position.

9.Press the brake pedal, release the accelerator pedal, and measure the voltage between interlock control unit connector terminal No. 2 and body ground. There should be battery voltage. If there is no voltage, check for an open or short in the wire.

10.Check for continuity between interlock control unit connector terminal No. 8 and body ground while shift lever in [P] position, and when shift lever out of [P]. There should be continuity while shift lever in [P] position, and there should be no continuity when shift lever out of [P]. If the test results are different, a park pin switch defect, and check for an open in the wire.

11.Check for continuity between interlock control unit connector terminals No. 4 and body ground, and between No. 6 and body ground. There should be continuity to ground under all conditions. If there is no continuity, check for an open in the wires, or poor ground (G401).