Acura TSX / Honda Accord CL. Manual — part 52

Fig. 25: Safety Indicator System Wiring Diagram

SAFETY INDICATOR INPUT TEST

1. Before testing the safety indicator functions, troubleshoot the multiplex integrated control system using

the B-CAN System Diagnosis Test Mode A (see B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Gauges & Indicators - TSX

Multiplex Integrated Control Unit

2. Remove the left kick panel (see TRIM REMOVAL/INSTALLATION - DOOR AREA ).

3. Disconnect the under-dash fuse/relay box connectors E, H and P.

Fig. 26: Identifying Under-Dash Fuse/Relay Box Connector E (16P) Terminals

NOTE:

All connectors are wire side of female terminals.

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Gauges & Indicators - TSX

Fig. 27: Identifying Under-Dash Fuse/Relay Box Connector H (14P) Terminals

Fig. 28: Identifying Under-Dash Fuse/Relay Box Connector P (30P) Terminals

4. Inspect the connector and socket terminals to be sure they are all making good contact.

z

If the terminals are bent, loose or corroded, repair them as necessary, are recheck the system.

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Gauges & Indicators - TSX

z

If the terminals look OK, go to step 5.

5. Reconnect the connectors to the under-dash fuse/relay box, and make sure these input tests at the

appropriate connectors on the under-dash fuse/relay box. See Fig. 29 .

z

If any test indicates a problem, find and correct the cause, then recheck the system.

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If all the input tests prove OK, go to step 6.

Fig. 29: Safety Indicator Input Test

6. Perform the Gauge Self-diagnostic Procedure (see SELF-DIAGNOSTIC PROCEDURE ).

z

If the indicators flash, go to step 7.

z

If the indicators do not flash, replace the gauge control module.

7. Substitute a known-good under-dash fuse/relay box and recheck the system.

z

If the symptom is gone, the multiplex integrated control unit (MICU) is faulty; replace the under-
dash fuse/relay box.

z

If the symptom is still present, the gauge control module must be faulty; replace the gauge control
module.

LIGHTS-ON, KEY-IN, SEAT BELT REMINDER, KEY LIGHT TIMER & ENGINE
OIL PRESSURE INDICATOR SYSTEMS

CIRCUIT DIAGRAM

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Gauges & Indicators - TSX