Cruise Control Unit Input Test - Honda Civic 2002-2003 Service Manual

Cruise Control
Cruise Control Unit Input Test
SRS components are located in this area. Review the SRS component locations (see page 23-13) and precautions and
procedures (see page 23-14) in the SRS section before performing repairs or service.
1. Disconnect the 14P connector from the control unit.
2. Inspect the connector and socket terminals to be sure they are all making good contact.
If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
If the terminals look OK, go to step 3.
Wire side of
female terminals
14P CONNECTOR
3. With the 14P connector disconnected, make these input tests.
Cavity
Wire Test condition Test: Desired result Possible cause
if
result is not obtained
1 BRN/WHT Connect battery Check the operation of the • Faulty actuator
power magnetic clutch: Clutch
I •
Poor ground (G301)
should click and output link
' • An open in the wire
should be locked.
I
• Short to ground (arcs when
power is connected)
2 BLU Ignition switch ON Check for voltage to ground: • Faulty brake pedal position
(II), main switch ON There should be 0 V with the
switch
and brake pedal
pedal pressed and battery
·
An open in the wire
pressed, then voltage with the pedal
·
Open in cruise control main
released released.
switch
·
Blown No.4 (10 A) fuse in the
under/dash fuse/relay box
3 BLK Under all conditions Check for continuity to
·
Poor ground (G501)
ground: • An open in the wire
There should be continuity.
4 BLKJORN Ignition switch ON
Check for voltage to ground: • Blown No.4 (10 A) fuse in the
(II) There should be battery under-dash fuse/relay box
voltage. • An open in the wire
5 WHT/BLK Brake pedal pressed, Check for voltage to ground:
·
Blown No.7 (15 A) fuse in the
then released There should be battery under-hood fuse/relay box
voltage with the pedal
I
·
Faulty brake pedal position
pressed, and 0 V with the
switch
pedal released. • An open in the wire
4-40
,
•
•