Steering Lock System (Diagnostic Codes & Circuit Tests): Other Toyota RAV4 IV

PROCEDURE

1. CHECK FOR DTC OUTPUT (B2785) Check for DTCs.Refer to «DTC CHECK / CLEAR»(ref-493498-S07193824532012081000000) . OK DTC B2781 is output, but DTC B2785 is not output. NG --> See step 2 OK --> See step 3
2. REFER TO B2785. Refer to «DTC B2785: Communication Malfunction between ECUs Connected by LIN»(ref-493532-S36697523132012081000000)
3. REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU). Refer to «REMOVAL»(ref-493482-S36962048562012081000000)

1. CHECK FOR DTC (CERTIFICATION ECU) Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Read the DTCs of the certification ECU by following the prompts displayed on the Techstream screen. OK No DTCs related to the certification ECU are output. NG --> GO TO RELEVANT DTC OK: Go to next step
2. CHECK FOR DTC (MAIN BODY ECU) Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Read the DTCs of the main body ECU by following the prompts displayed on the Techstream screen. OK No DTCs related to the main body ECU are output. NG --> GO TO RELEVANT DTC OK: Go to next step
3. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Within 10 seconds after the engine is started, read the Data List menu of the certification ECU, and check the steering lock command reception record. SMART KEY Item Measurement Item / Range Normal Condition Diagnostic Note Lock/Unlock Receive Steering lock command reception record / Yes or No Yes: Steering lock/unlock signal received No: Steering lock/unlock signal not received - OK Yes is displayed on the Techstream screen. NG --> See step 5 OK: Go to next step
4. CHECK STEERING LOCK ECU Turn the engine switch on (IG). Turn the engine switch off. With the shift lever in P, immediately after opening the driver door, inspect the voltage between terminals 3 (IGE) and 2 (SGND) of the steering lock ECU. RESULT Result Proceed to Immediately after opening door, measurement is below 1 V. A Measurement is 11 to 14 V, and measurement never becomes below 1 V. B B --> REPAIR OR REPLACE HARNESS OR CONNECTOR A --> See step 15
5. CHECK STEERING LOCK FUNCTION Open the front passenger side door. Lock the doors using the wireless remote door lock key. Check that no doors are locked and the steering lock does not operate. OK No doors are locked and steering lock is not locked. NG --> See step 11 OK: Go to next step
6. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Check the Data List and read the value displayed on the Techstream screen. SMART KEY Item Measurement Item / Range Normal Condition Diagnostic Note S Code Check S code match record / NG or OK NG: S code not matched OK: S code matched - RESULT Result Proceed to NG is displayed on the Techstream screen. A OK is displayed on the Techstream screen. B B --> See step 8 A: Go to next step
7. CHECK OPERATION OF ID CODE BOX Replace the ID code box with a new one.Refer to «REMOVAL»(ref-493501-S39394631242012081000000) . NOTE: When replacing the ID code box, registration must be performed according to the "Registration" procedures.Refer to «REGISTRATION»(ref-493456-S17392561222012081000000) . Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Check the Data List and read the value displayed on the Techstream screen. SMART KEY Item Measurement Item / Range Normal Condition Diagnostic Note S Code Check S code match record / NG or OK NG: S code not matched OK: S code matched - OK OK is displayed on the Techstream screen. NG --> See step 16 OK --> See step 12
8. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Check the Data List and read the value displayed on the Techstream screen. SMART KEY Item Measurement Item / Range Normal Condition Diagnostic Note L Code Check L code match record / NG or OK NG: L code not matched OK: L code matched - RESULT Result Proceed to NG is displayed on the Techstream screen. A OK is displayed on the Techstream screen. B B --> See step 10 A: Go to next step
9. CHECK OPERATION OF ID CODE BOX Replace the ID code box with a new one.Refer to «REMOVAL»(ref-493501-S39394631242012081000000) . NOTE: When replacing the ID code box, registration must be performed according to the "Registration" procedures.Refer to «REGISTRATION»(ref-493456-S17392561222012081000000) . Connect the Techstream to the DLC3. Turn the engine switch on (IG) and turn the Techstream on. Check the Data List and read the value displayed on the Techstream screen. SMART KEY Item Measurement Item / Range Normal Condition Diagnostic Note L Code Check L code match record / NG or OK NG: L code not matched OK: L code matched - OK OK is displayed on the Techstream screen. NG --> See step 17 OK --> See step 13
10. CHECK OPERATION OF STEERING LOCK ECU Replace the steering lock ECU with a new one.Refer to «REMOVAL»(ref-493482-S36962048562012081000000) . NOTE: When replacing the steering lock ECU, registration must be performed according to the "Registration" procedures.Refer to «REGISTRATION»(ref-493456-S17392561222012081000000) . With the shift lever in P and the brake pedal depressed, turn the engine switch on (IG). Check whether the steering lock can be released by turning the steering wheel, and check that the engine starts. OK Steering lock is released and engine starts. NG --> See step 18 OK --> See step 14
11. GO TO LIGHTING SYSTEM (DOOR COURTESY SWITCH CIRCUIT). Refer to «Door Courtesy Switch Circuit»(ref-493502-S31630914502012081000000)
12. REPLACE ID CODE BOX. Refer to «REMOVAL»(ref-493501-S39394631242012081000000)
13. REPLACE ID CODE BOX. Refer to «REMOVAL»(ref-493501-S39394631242012081000000)
14. REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU). Refer to «REMOVAL»(ref-493482-S36962048562012081000000)
15. REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU). Refer to «REMOVAL»(ref-493482-S36962048562012081000000)
16. REPLACE ECU AGGREGATION BOX ASSEMBLY (CERTIFICATION ECU). Refer to «REMOVAL»(ref-493499-S07988239742012081000000)
17. REPLACE STEERING LOCK ACTUATOR ASSEMBLY (STEERING LOCK ECU). Refer to «REMOVAL»(ref-493482-S36962048562012081000000)
18. REPLACE ECU AGGREGATION BOX ASSEMBLY (CERTIFICATION ECU). Refer to «REMOVAL»(ref-493499-S07988239742012081000000)