Honda Civic 2002-2003 Service Manual page 331

VTEC/VTC
DTe Troubleshooting (cont'd)
10. Measure voltage between ECM connector terminal
89 and body ground.
ECM CONNECTOR B 124P)
1 2 3 4 5 6 7
8 9 10 13 15
17 1 LLJ",21:.JL.J!2",3JLj
VTPSW IBlU/BlK)
=
Wire side of female terminals
Is there battery voltage?
YES-Repair open in the wire between the VTEC oil
pressure switch and the ECM (89) .•
NO-Goto step 11.
11. Turn the ignition switch OFF.
12. Disconnect ECM connector 8 124P).
13. Check for continuity between ECM connector
terminal 89 and body ground.
ECM CONNECTOR B 124P)
1 2 3 4 5 6 7
8 9 10
13 15
171
21 23
VTPSW IBLU/BlK)
Q
=
Wire side of female terminals
/s
there continuity?
YES-Repair short in the wire between the VTEC oil
pressure switch and the ECM (89) .•
NO- Update the ECM if it does not have the latest
software, or substitute a known-good ECM, then
recheck (see page 11-6). If the symptom/indication
goes away with a known-good ECM, replace the
original ECM .•
11-124
14. Measure voltage between VTEC oil pressure switch
2P connector terminals No.1 and No.2.
VTEC Oil PRESSURE SWITCH
2P CONNECTOR
VTPSW
IBLU/BlK)
LG1
IBRN/YEL)
'------{'i.. }-_...J
Wire side of female terminals
Is there battery voltage?
YES-Go to step 15.
NO-Repair open in the wire between the VTEC oil
pressure switch and G101 .•
15. Turn the ignition switch OFF.
16. Disconnect the VTEC solenoid valve 2P connector.
17. Check for resistance between VTEC solenoid valve
2P connector terminals No.1 and NO.2.
VTEC SOLENOID VALVE
2P CONNECTOR
Terminal side of male terminals
/sthere 14-30"?
YES-Go to step 18.
NO-Replace the VTEC solenoid valve Isee page
1,.,28) .•
•
•