Disconnect ECM/PCM connector B (24P). Check for continuity between ECM/PCM connector terminal B15 and body ground. ECM/PCM CONNECTOR B (24P) Wire side of female terminals Is there continuity? YES - Repair short in the wire between the VTEC solenoid valve and the ECM/PCM (B15). NO - Go to step 33.

Connect the VTEC solenoid valve 1P connector terminal No. 1 and body ground with a jumper wire. VTEC SOLENOID VALVE HARNESS 1P CONNECTORS Wire side of female terminals Check for continuity between ECM/PCM connector terminal B15 and body ground. ECM/PCM CONNECTOR B (24P) Wire side of female terminals Is there continuity? YES - Substitute a known-good ECM/PCM and recheck (see page 11-313). If symptom/indication goes away, replace the original ECM/PCM. NO - Repair short in the wire between the VTEC solenoid valve and the ECM/PCM (B15).