Inspection Procedure

Troubleshoot in accordance with the chart below for each trouble symptom.

1. Check ABS warning light. 

   See the combination meter troubleshooting on PROBLEM SYMPTOMS TABLE .

   NG: Repair bulb or combination meter assembly. 

   OK: Go To Next Step 

2. Check ABS & TRAC solenoid relay. 

   PREPARATION: 

   Remove the ABS & TRAC solenoid relay from the Engine Room R/B No. 3.

   CHECK: 

   Check the continuity between each terminal of the ABS & TRAC solenoid relay.

   Fig 1: Checking ABS & TRAC Solenoid Relay

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: 

   ABS AND TRAC SOLENOID RELAY SPECIFICATIONS
   
   

   Application	Specification
   Terminals 4 And 6	Continuity (Reference Value 80 Ohms)
   Terminals 2 And 3	Continuity
   Terminals 1 And 3	Open

   CHECK: 

   1. Apply battery positive voltage between terminals 4 and 6.
   2. Check the continuity between each terminal of the ABS & TRAC solenoid relay.

   OK: 

   ABS AND TRAC SOLENOID RELAY CONTINUITY
   
   

   Terminals 2 And 3	Open
   Terminals 1 And 3	Continuity

   CHECK: 

   Connect the positive (+) test lead to terminal 5 and the negative (-) lead to terminal 3. Check continuity between the terminals.

   OK: Continuity 

   If there is no continuity, connect the negative (-) test lead to terminal 5 and the positive (+) lead to terminal 3. Check the continuity between terminals once again.

   NG: Replace ABS & TRAC solenoid relay. 

   OK: Check for open circuit in harness and connector between DLC1, ABS & TRAC solenoid relay and body ground.  See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE .

3. Is DTC output? 

   Check the DTC on PRE-CHECK .

   YES: Repair circuit indicated by code output. 

   NO: Go To Next Step 

4. Does ABS warning light go off? 

   NO: Check for short circuit in harness and connector between ABS warning light, DLC1 and ABS & TRAC ECU.  See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE .

   YES: Go To Next Step 

5. Check ABS & TRAC solenoid relay. See step   2 . 

   NG: Replace ABS & TRAC solenoid relay. 

   OK: Check for short circuit in harness and connector between DLC1 and ABS & TRAC solenoid relay.  See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE .