Toyota RAV4 manuals

Toyota Sienna Service Manual: How to proceed with troubleshooting

Toyota Sienna Service Manual / Theft deterrent / Theft deterrent system / How to proceed with troubleshooting

HINT:

1 VEHICLE BROUGHT TO WORKSHOP

2 CUSTOMER PROBLEM ANALYSIS

  1. Interview the customer to confirm the trouble

3 INSPECT COMMUNICATION FUNCTION OF MULTIPLEX COMMUNICATION SYSTEM (BEAN)

  1. Use the intelligent tester to check for normal function of the multiplex communication system.
  1.  (ECU unconnected, communication line malfunctioning) Without code output, proceed to A.
  2.  (ECU unconnected, communication line malfunctioning) With code output, proceed to B.

4 SYMPTOM SIMULATION

5 PROBLEM SYMPTOMS TABLE

  1. If the fault is not listed on the problem symptoms table, proceed to A.
  2.  If the fault is listed on the problem symptoms table, proceed to B.

6 PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM

  1. Terminals of ECU
  2.  System description

7 ADJUST, REPAIR OR REPLACE

8 CONFIRMATION TEST

END

System description
1. OUTLINE OF THEFT DETERRENT SYSTEM  When the theft deterrent system detects that the vehicle is being tampered with, the system sets off the alarm, causing the horns to sound and the li ...

Customize parameters
HINT: The following items can be customized. NOTICE:  After confirming whether the items requested by the customer are applicable or not for customization, perform customizing operation ...

Other materials:

How to proceed with troubleshooting
NOTICE: DTCs for the CAN communication system are as follows: U0073, U0100, U0122, U0123, U0124, U0126 and U1101. HINT: If U0235 or U1102 is output alone, the CAN communication is normal 1 CHECK AND CLEAR DTCS HINT: CAN communication DTCs are output when there is an open or short in any ...

Check mode procedure
HINT: Intelligent tester only: Compared to normal mode, check mode is more sensitive to malfunctions. Therefore, check mode can detect the malfunctions that cannot be detected by normal mode. NOTICE:All the stored DTCs and freeze frame data are erased if: 1) the ECM is changed fro ...

Short to B+ in Front Pretensioner Squib LH Circuit
DTC B0138/72 Short to B+ in Front Pretensioner Squib LH Circuit DESCRIPTION The front pretensioner squib LH circuit consists of the center airbag sensor assembly and the front seat outer belt assembly LH. This circuit instructs the SRS to deploy when deployment conditions are met. DTC B01 ...

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