Acura 3.5 RL Manual page 394

PGM-FI System
MIL Circuit Troubleshooting
Turn the ignition switch ON (II)
and watch the Malfunction
Indicator Lamp (MIL).
Does the MIL come on and
stay on?
NO
Check the fuse:
1. Turn the ignition switch OFF.
2. Turn the ignition switch ON (II]
Does the low oil pressure
indicator light come on?
YES
Check the engine starting:
Try to start the engine.
Does the engine start?
NO
(To page 11-71)
NOTE:
If this symptom is intermittent, check for the following problems.
• The MIL never comes on after the ignition switch is turned ON (II).
— A loose No. 6 ECU (PCM) (20 A) fuse in the under-dash fuse/relay box
— A loose No. 22 FUEL PUMP (20 A) fuse in the under-dash fuse/relay box
— An intermittent short in the wire between the PCM (A7) and the gauge assembly
— An intermittent short in the wire between the PCM (D10) and the MAP sensor
— An intermittent short in the wire between the PCM (D21) and the TP sensor, EGR
valve position sensor, fuel tank pressure sensor, TCS control valve angle sensor
— A loose No. 25 IG COIL (30 A) fuse in the under-dash fuse/relay box
— PGM-FI main relay
• The MIL stays on or comes on after 2 seconds with the ignition switch turned ON (II).
— An intermittent short in the wire between the PCM (C5) and the service check con-
nector, data link connector
— An intermittent open in the wire between the PCM (D22) and the service check connec-
tor
— An intermittent short in the wire between the PCM (A7) and the gauge assembly.
• See the HDS or the scan tool user's manuals for specific operating instructions.
YES
(To page 11-73)
Repair short or open in the
wire between gauge relay
and gauge assembly.
Repair short or open in the
NO
wire between METER (15A)
fuse and gauge relay.
Repair short or open in the
wire between NO. 13 METER
(7.5A) fuse and gauge relay.
Test the gauge relay.
Replace METER (ISA) fuse
and/or No.13 METER (7.5A)
fuse.
YES
(To page 11-75)