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