Turn Signal/Hazard Relay Input Test

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

1. 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 .

1. 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.

   Cavity | Teat condition | Test: Desired result | Possible cause if result is not obtained
   --- | --- | --- | ---
   6 | Under all conditions | Check for votage 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 (LHD type: G501, G601) or (RHD type: 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 should come on. |
   - Blown bulb
   - Poor ground (G301, G503, 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 should come on. |
   - Blown bulb
   - Poor ground (G201, G701)
   - An open in the wire
   4 | Ignition switch ON (II) and turn signal switch in Left position. | Check for voltage to ground. There should be about 10 V. |
   - Poor ground(LHD type: G501, G601) or (RHD type: G601)
   - Faulty turn signal switch
   - Faulty under-dash fuse/relay box
   - An open in the wire
   - Faulty combination switch control unit *
   - Faulty MICU *
   5 | Igniton switch ON (II) and turn signal switch in Right position. | Check for voltage to ground. There should be about 10 V.
   4 | Hazard warning switch ON | Check for voltage to ground. There should be about 10 V. |
   - Poor ground(LHD type: 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 *
   5 | Check for voltage to ground. There should be about 10 V.

   *: Go to the multiplex integrated control system test mode A troubleshooting