Scheme 1
Scheme 2
Scheme 3
- Before testing, troubleshoot the multiplex control system (see «TROUBLESHOOTING»(/acura/rsx/i-2001-2004/remont/communication-devices/#multiplex-control-system__troubleshooting) ).
- Remove the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(/acura/rsx/i-2001-2004/remont/exteriorinterior-trim/#dashboard) ).
- Disconnect the under-dash fuse/relay box connectors. NOTE: All connectors are wire side of female terminals.
- Inspect the connector and socket terminals to be sure. They are all making good contact. If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system. If the terminals look OK, go to step 5.
- With the connectors still disconnected, make this input test at the connector. If the test indicates a problem, find and correct the cause, then recheck the system. If the input test proves OK, go to step 6. INPUT TEST (CONNECTORS DISCONNECTED) Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained K2 BLU/ORN Under all conditions Check for continuity between the K2 terminal and the keyless receiver unit 5P connector No. 2 terminal: There should be continuity. An open in the wire
- Reconnect the connectors to the under-dash fuse/relay box, and make these input tests at the appropriate connectors on the under-dash fuse/relay box. If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, the multiplex control unit must be faulty, replace the under-dash fuse/relay box assembly. INPUT TEST (CONNECTORS CONNECTED) Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained O7 GRN/RED Ceiling light switch in middle position Attach to ground: Ceiling light should come on. Blown No. 3 (7.5 A) fuse in the under-hood fuse/relay box Blown bulb Faulty ceiling light An open in the wire P18 RED Hatch open Check for voltage to ground: There should be 1 V or less. NOTE: Remove the No. 3 (7.5 A) fuse from the under-hood fuse/relay box. Poor ground (G701) Faulty hatch latch switch An open in the wire Hatch closed Check for voltage to ground: There should be 5 V or more. NOTE: Remove the No. 3 (7.5 A) fuse from the under-hood fuse/relay box. Faulty hatch latch switch Short to ground Q3 GRN Driver's door open Check for voltage to ground: There should be 1 V or less. Faulty driver's door switch An open in the wire Driver's door closed Check for voltage to ground: There should be 5 V or more. Faulty driver's door switch Short to ground Q4 LT GRN/RED Passenger's door open Check for voltage to ground: There should be 1 V or less. Faulty passenger's door switch An open in the wire Passenger's door closed Check for voltage to ground: There should be 5 V or more. Faulty passenger's door switch Short to ground X5 RED/WHT Ignition key inserted into the ignition switch Check for voltage to ground: There should be 1 V or less. Poor ground (G401) Faulty ignition key switch An open in the wire Ignition key removed from the ignition switch Check for voltage to ground: There should be 5 V or more. Faulty ignition key switch Short to ground X8 WHT/BLK Under all conditions Attach to ground: Ignition key light should come on. Blown No. 3 (7.5 A) fuse in the under-hood fuse/relay box Faulty ignition key light An open in the wire Y8 YEL/RED Driver's door locked Check for voltage to ground: There should be 1 V or less. Poor ground (G401) Faulty driver's door lock knob switch An open in the wire Driver's door unlocked Check for voltage to ground: There should be 5 V or more. Faulty driver's door lock knob switch Short to ground
Ignition Key Switch Test
Note. For more key-in beeper information, refer to the circuit diagram (see CIRCUIT DIAGRAM ) and input test (see CONTROL UNIT INPUT TEST ).
When the ignition key is in the ignition switch, the key-in beeper circuit of the multiplex control unit senses ground through the closed ignition key switch. When you open the driver's door, the beeper circuit senses ground through the closed door switch. When both switches are closed (driver's door and ignition), the key-in beeper in the gauge assembly is activated.
Scheme 4
- Remove the steering column upper and lower covers (see «STEERING COLUMN REMOVAL AND INSTALLATION»(/acura/rsx/i-2001-2004/remont/manual-power-steering/#power-steering-system__steering-column-removal-and-installation) ).
- Disconnect the 6P connector.
- Check for continuity between the No. 1 and No. 2 terminals. There should be continuity with the key in the ignition switch. There should be no continuity with the key removed.
- If the continuity check is not as specified, replace the steering lock assembly.
Scheme 5
- Remove the steering column upper and lower covers (see «STEERING COLUMN REMOVAL AND INSTALLATION»(/acura/rsx/i-2001-2004/remont/manual-power-steering/#power-steering-system__steering-column-removal-and-installation) ).
- Disconnect the 6P connector.
- The LED should come on when power is connected to the No. 6 terminal and ground is connected to No. 5 terminal.
- If the LED does not come on, replace the steering lock assembly.