Honda CR-V 1997 Service Manual page 1250

Control Unit Input Test
1. Remove the driver's dashboard lower cover and the knee bolster (see section 20).
2. Disconnect the 5P connector from the control unit.
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3. 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, make the foll owi ng input tests at the connector.
- If
any test
indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, the control unit must be faulty; replace
it.
Cavity Wire
Test condition
5 BlK
Under all conditions
Ignition switch ON 1111
1
WHT/GRN
Driver's door open
2 GRN
Driver's door closed
Under all conditions
3 WHT/BlK
IGNITION KEY LIGHT
CONTROL UNIT
5P CONNECTOR
Wire side of
female terminals
Test: Desired result
Possible cause if result is not obtained
Check for continuity to ground: • Poor ground IG401, G4021
There should be continuity. • An open in the wire
Check for voltage to ground: • Blown No. 33 17.5 AI fuse in the
There should be battery voltage. under-dash fuse/relay box
• An open in the wire
Check f or vo ltage to ground:
• Faulty driver's door switch
There should be 1 V or less. • An open in the wire
Check for voltage to ground:
There should be 4 V or more.
Connect to ground: Ignition key • Blown No. 33 17.5 Al fuse in the
light should come on. under·dash fuse/re lay box
• Bl own ignition key lig ht bulb
• An apen in the wire
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