CONSULT Inspection Procedure

Diagnostic Items Application
For diagnostic item in each control system, read the CONSULT.





Diagnostic Items Description

NOTE: When CONSULT diagnosis is operating, some systems under IVMS control do not operate.

Consult Inspection Procedure




1. Turn ignition switch "OFF".
2. Connect "CONSULT" to the data link connector.




3. Turn ignition switch "ON".
4. Touch "START".




5. Touch "IVMS".




6. Perform each diagnostic item according to the item application chart.

IVMS Communication Diagnosis




1. Touch "IVMS COMM DIAGNOSIS" in "IVMS-COMM CHECK".




2. Touch "START".




3. If no failure is detected, inspection is end.




If any problem code is displayed, repair/replace the system according to the IVMS communication diagnosis results.

4. Erase the diagnostic results memory.
a. Turn ignition switch "ON".
b. Touch "IVMS".
c. Touch "IVMS COMM DIAGNOSIS" in "IVMS-COMM CHECK".
d. Touch "START" for "IVMS COMM DIAGNOSIS".
e. Touch "ERASE".

Wake-Up Diagnosis




1. Touch "WAKE-UP DIAGNOSIS" in "IVMS-COMM CHECK".
2. Touch "START" for "WAKE-UP DIAGNOSIS".




3. After touching "START", turn ON switch designated on CONSULT display within 15 seconds.




4. If no failure is detected, touch "NEXT" and perform wake-up diagnosis for next LCU or touch "END". (INSPECTION END)




If any problem is displayed, replace the LCU.




If "SW DATA UNMATCH" is displayed, touch "RETEST" and perform wake-up diagnosis again.




IVMS Communication Diagnoses Results List-1




IVMS Communication Diagnoses Results List-2




IVMS Communication Diagnoses Results List-3

On-Board Diagnostic Results Indicator Lamp








Front map lamps and step lamps (all seats) act as the indicators for the on-board diagnosis Mode I, II, III and IV. Seat memory indicator-1 and 2 act as the indicators for the on-board diagnosis Mode V. These lamps blink simultaneously in response to diagnostic results.





On-Board Diagnostic Function

NOTE:
- When on board diagnosis Mode I, II, III and IV is operating, all systems under IVMS control do not operate.
- When on board diagnosis Mode V is operating, automatic drive positioner does not operate.
- The step lamp of malfunctioning LCU does not blink.

On-Board Diagnosis - Mode I (IVMS Communication Diagnosis)





How To Perform Mode I




Description
In this mode, a malfunction code is indicated by the number of flashes from the front map lamps and step lamps as shown above:
After indicator lamp turns on for 2 seconds then off for 2 seconds, it flashes [cycling ON (0.5 secs.)/OFF (0.5 secs.)] to indicate a malfunction code of the first digit. Then, 1 second after indicator lamp turns off, it again flashes [cycling ON (0.5 secs.)/OFF (0.5 secs.)] to indicate a malfunction code of the second digit.
For example, the indicator lamp goes on and off for 0.5 seconds twice and after 1.0 second, it goes on and off for 0.5 seconds four times. This indicates malfunction code "24".





Malfunction Code Table

On-Board Diagnosis - Mode II (Switch Monitor)





How To Perform Mode II




Description
In this mode, when Body Control Module (BCM) detects the input signal from a switch in In-Vehicle Multiplexing System (IVMS) as shown in diagram, the detection is indicated by the front lamp and front step lamps with buzzer.




Switch Monitor Item





WORK FLOW

NOTE:
- When LCU connectors are disconnected for more than 1 minute such as during trouble diagnoses, the "disconnected" data will be memorized by the BCM. (While BCM memorizes the "disconnected" data, IVMS communication diagnosis of CONSULT will display "PAST NO RESPONSE".) Therefore, afier reconnecting the LCU connectors, erase the memory.
- To erase the memory, perform the procedure below.
Erase the memory with CONSULT (Refer to EL-207.) or turn the ignition switch to "OFF" position and remove 7.5 A fuse [No. [14], located in the fuse block (J/B)].





Ground Circuit Check





Power Supply Circuit Check

NOTE: CONSULT (data monitor) may be used to check for the ignition switch input (ACC, ON, START).








Data Lines Open Circuit Check
NOTE: When checking data line circuit, disconnect BCM and all LCU connectors.
1. Disconnect BCM and LCU connectors.
2. Check continuity between BCM and LCU terminals.





Data Lines Short Circuit Check
1. Disconnect BCM and all LCU connectors.
2. Check continuity between BCM terminal and body ground.




3. Check voltage between BCM terminal and body ground.