Civic L4-1.8L CNG (2008)
52. Check for continuity between PCM connector terminal C36 and body ground.
Is there continuity?
YES - Repair short in the wire between the No. 2 FUEL PUMP (15 A) fuse and the PCM (C36), between the No. 2 FUEL PUMP (15 A) fuse and
fuel shut-off solenoid valve relay or between the No. 2 FUEL PUMP (15 A) fuse and the immobilizer control unit. Also replace the No. 2 FUEL
PUMP (15 A) fuse.
NO - Do the fuel pressure regulator shut-off solenoid valve/fuel tank internal solenoid valve troubleshooting.
53. Jump the SCS line with the HDS.
54. Disconnect PCM connectors A (44P) and C (44P).
55. Turn the ignition switch ON (II).
56. Measure voltage between PCM connector terminal C36 and body ground.
Is there battery voltage?
YES - Go to step 57.
NO - Repair open in the wire between the No. 2 FUEL PUMP (15 A) fuse and the PCM (C36).
57. Measure voltage between PCM connector terminal A6 and body ground.