RSX L4-2.0L (2005)
Is the MIL on?
YES - Go to step 22.
NO - Go to step 20.
20. Turn the ignition switch OFF.
21. Inspect the No.10 METER (7.5 A) fuse in the under dash fuse/relay box.
Is the fuse OK?
YES - Check for an open in the wire between the ECM/PCM (E31) and the gauge assembly Also check for a blown MIL bulb If the wires and the
bulb are OK, replace the gauge assembly.
NO - Repair short in the wire between No.10 METER (7.5 A) fuse and the gauge assembly Also replace the No.10 METER (7.5 A) fuse.
22. Turn the ignition switch OFF.
23. Connect the HDS.
24. Turn the ignition switch ON (II), and read the HDS.
Does the HDS communicate with the ECM/PCM?
YES - Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the
symptom/indication goes away with a known-good ECM/PCM, replace the original ECM/PCM.
NO - Go the "DLC Circuit Troubleshooting".
25. Turn the ignition switch OFF.
26. Inspect the No.20 IG (USA: 40 A, Canada: 50 A) fuse in the under-hood fuse/relay box.
Is the fuse OK?
YES - Repair open in the wire between the No.20 IG (USA: 40 A, Canada: 50 A) fuse and the ignition switch. If the wires are OK, go to step 27.
NO - Repair short in the wire between No.20 IG (USA: 40 A, Canada: 50 A) fuse and the under-hood fuse/relay box. Also replace the No.20 IG
(USA: 40 A, Canada: 50 A) fuse.
27. Turn the ignition switch OFF.
28. Inspect the No.6 ECU (ECM/PCM) (20 A) fuse in the under-hood fuse/relay box.
Is the fuse OK?
YES - Go to step 35.
NO - Go to step 29.
29. Remove the blown No.6 ECU (ECM/PCM) (20 A) fuse in the under-hood fuse/relay box.
30. Remove the glove box. Remove PGM-FI main relay 1 (FI MAIN) (A).
