Acura TSX / Honda Accord CL. Manual — part 51

REPLACEMENT ).

Fig. 21: Checking For Continuity Between The No. 16 & No. 17 Terminals Of Gauge Control
Module Connector B (18P) & Body Ground

DTC B1177: Abnormal Battery Voltage (7.5 V)

1. Clear the DTCs using the HDS.

2. Cycle the ignition switch to OFF and then back ON.

3. Check for DTCs by selecting the DTCs MENU (DTCs) from the HDS.

Is DTC B1177 indicated?

YES: Go to step 5 .

NO: Go to step 4.

4. Crank the engine.

Is DTC B1177 indicated?

YES: Go to step 5.

NO: Intermittent failure. The gauge control module and power supply voltage (IG 1) that is
supplied to the gauge control module are OK at this time.

5. Check the battery condition and the charging system. See GENERATORS & REGULATORS .

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Gauges & Indicators - TSX

Is the battery condition normal and the charging system OK?

YES: Go to step 6.

NO: Abnormal battery condition which needs a recharge or replacement, or a charging
system repair.

6. With gauge control module connector B (18P) still connected, check for voltage between the No. 10

terminal and body ground.

Is there 7.5 V or more?

YES: Go to step 7.

NO: Repair an open or high resistance in the YEL wire between the gauge control module
and under-dash fuse/relay box.

Fig. 22: Checking For Voltage Between The No. 10 Terminal & Body Ground

7. Check for voltage between the No. 10 and No. 9 terminals.

Is there 7.5 V or more?

YES: Faulty gauge control module; replace the gauge control module (see GAUGE
CONTROL MODULE REPLACEMENT ).

NO: Repair an open or high resistance in the BLK wire between the gauge control module
and ground.

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Gauges & Indicators - TSX

Fig. 23: Checking For Voltage Between The No. 10 & No. 9 Terminals

SAFETY INDICATOR SYSTEM

COMPONENT LOCATION INDEX

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Gauges & Indicators - TSX

Fig. 24: Locating Safety Indicator System Components

CIRCUIT DIAGRAM

2004 Acura TSX

2004 ACCESSORIES & EQUIPMENT Gauges & Indicators - TSX