• HEADINGS
  • Component Location Index
  • Circuit Diagram
  • Turn Signal/Hazard Relay Input Test
  • Hazard Warning Switch Test/Replacement
    • '04-05 models
    • '06-08 models
• FIGURES
  • Fig. 1: Identifying Turn Signal/Hazard Warning Lights Component Location
  • Fig. 2: Turn Signal/Hazard Warning Lights - Circuit Diagram (1 Of 2)
  • Fig. 3: Turn Signal/Hazard Warning Lights - Circuit Diagram (2 Of 2)
  • Fig. 4: Identifying Turn Signal/Hazard Relay And Under-Dash Fuse/Relay Box
  • Fig. 5: Identifying Hazard Warning Switch 5P Connector Terminals
  • Fig. 6: Checking For Continuity Between Terminals In Each Switch Position
  • Fig. 7: Identifying Hazard Warning Switch 7P Connector Terminals
  • Fig. 8: Checking For Continuity Between Terminals In Each Switch Position
• TABLES
  • TEST CONDITION REFERENCE CHART

2004-08 ACCESSORIES & EQUIPMENT

Turn Signal/Hazard Warning Lights - TSX

Component Location Index

Fig. 1: Identifying Turn Signal/Hazard Warning Lights Component Location
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Circuit Diagram

Fig. 2: Turn Signal/Hazard Warning Lights - Circuit Diagram (1 Of 2)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Fig. 3: Turn Signal/Hazard Warning Lights - Circuit Diagram (2 Of 2)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Turn Signal/Hazard Relay Input Test

1. Remove the turn signal/hazard relay (A) from the under-dash fuse/relay box (B).

   Fig. 4: Identifying Turn Signal/Hazard Relay And Under-Dash Fuse/Relay Box
   Courtesy of AMERICAN HONDA MOTOR CO., INC.

2. Inspect the relay and fuse/relay box 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 3.
3. Make these input tests at the 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 turn signal/hazard relay must be faulty; replace it.

     TEST CONDITION REFERENCE CHART
     

     Cavity	Test condition	Test: Desired result	Possible cause if desired result is not obtained
     6	Under all conditions	Measure the voltage to ground: There should be battery voltage.	Blown No. 16(15 A) fuse in the under-hood fuse/relay box Faulty under-dash fuse/relay box An open in the wire
     1	Under all conditions	Check for continuity to ground: There should be continuity.	Poor ground (G501, G601) Faulty under-dash fuse/relay box An open in the wire
     2	Connect the No. 6 terminal to the No. 2 terminal with a jumper wire.	Check the turn signal lights operation: The left turn signal lights and indicator should come on.	Blown bulb Poor ground (G301, G501, G601, G701) An open in the wire
     3	Connect the No. 6 terminal to the No. 3 terminal with a jumper wire.	Check the turn signal lights operation: The right turn signal lights and indicator should come on.	Blown bulb Poor ground (G201, G503, G701) An open in the wire
     4	Ignition switch ON (II) and turn signal switch in Left position	Measure the voltage to ground: There should be about 10 V.	Poor ground (G501, G601) Faulty turn signal switch Faulty under-dash fuse/relay box An open in the wire Faulty combination switch control unit Faulty MICU(1)
     5	Ignition switch ON (II) and turn signal switch in Right position	Measure the voltage to ground: There should be about 10 V.
     4	Hazard warning switch ON	Measure the voltage to ground: There should be about 10 V.	Poor ground (G501, G601) Blown No. 16(15 A) fuse in the under-hood fuse/relay box Faulty under-dash fuse/relay box Faulty hazard warning switch An open in the wire Faulty MICU(1)
     5		Measure the voltage to ground: There should be about 10 V.
     (1) Go to the B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A )

Hazard Warning Switch Test/Replacement

'04-05 models

1. Remove the hazard warning switch (A).

   Fig. 5: Identifying Hazard Warning Switch 5P Connector Terminals
   Courtesy of AMERICAN HONDA MOTOR CO., INC.

2. Disconnect the 5P connector (B) from the hazard warning switch.
3. Remove the two mounting screws, then push out the hazard warning switch from behind the center panel.
4. Check for continuity between the terminals in each switch position.

   Fig. 6: Checking For Continuity Between Terminals In Each Switch Position
   Courtesy of AMERICAN HONDA MOTOR CO., INC.

5. If the continuity is not as specified, replace the bulb (C) or the hazard warning switch.

'06-08 models

1. Remove the upper panel (see DASHBOARD UPPER PANEL REMOVAL/INSTALLATION ).
2. Push out the hazard warning switch (A) from behind the upper panel.

   Fig. 7: Identifying Hazard Warning Switch 7P Connector Terminals
   Courtesy of AMERICAN HONDA MOTOR CO., INC.

3. Disconnect the 7P connector (B) from the hazard warning switch.
4. Check for continuity between the terminals in each switch position.

   Fig. 8: Checking For Continuity Between Terminals In Each Switch Position
   Courtesy of AMERICAN HONDA MOTOR CO., INC.

5. If the continuity is not as specified, replace the bulb (C) or the hazard warning switch.