CAUTION / NOTICE / HINT
HINT:
PROCEDURE
1. |
VEHICLE BROUGHT TO WORKSHOP |
|
2. |
CUSTOMER PROBLEM ANALYSIS |
|
3. |
INSPECT BATTERY VOLTAGE |
Standard voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery before proceeding.
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4. |
CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Use the Techstream to check if the CAN communication system is functioning normally.
Click here
HINT:
The ECU of this system is connected to the CAN communication system.
Therefore, before starting troubleshooting, make sure to check that there is no trouble in the CAN communication system.
Result |
Proceed to |
---|---|
CAN DTCs are not output |
A |
CAN DTCs are output |
B |
B | ![]() |
CHECK CAN COMMUNICATION SYSTEM |
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5. |
CHECK DTC AND FREEZE FRAME DATA* |
(a) Check for DTCs.
Click here
(b) Check for freeze frame data.
HINT:
Record or print DTCs and freeze frame data if necessary.
(c) Clear the DTCs and freeze frame data.
Click here
(d) Recheck for DTCs.
Click here
(1) Simulate the malfunction condition and check if the DTCs are output again.
Result |
Proceed to |
---|---|
DTCs are not output |
A |
DTCs are output |
B |
B | ![]() |
GO TO STEP 10 |
|
6. |
PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
Result |
Proceed to |
---|---|
Fault not listed in problem symptoms table |
A |
Fault listed in problem symptoms table |
B |
B | ![]() |
GO TO STEP 8 |
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7. |
OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Terminals of ECU.
Click here
(b) Data List / Active Test.
Click here
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8. |
REPAIR OR REPLACE |
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9. |
CONFIRM TEST |
NEXT | ![]() |
END |
10. |
GO TO DTC CHART |
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11. |
REPAIR OR REPLACE |
|
12. |
CONFIRM TEST |
NEXT | ![]() |
END |
Removal
REMOVAL
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the ignition switch off, waiting time may be required before disconnecting
the cable from the negative (-) battery terminal. Therefore, make sure to read the
disconnecting the cable from the negative (-) battery terminal notices before pr ...
Lost Communication with ECM (C1437)
DESCRIPTION
The skid control ECU (master cylinder solenoid) receives signals from the ECM
via the CAN communication system.
DTC Code
DTC Detection Condition
Trouble Area
C1437
When the IG1 terminal voltage is 10 V or higher and the veh ...
Diagnosis System
DIAGNOSIS SYSTEM
CHECK DLC3
(a) Check the DLC3.
Click here
FUNCTION OF WARNING INDICATOR AND MESSAGE
(a) If the pre-collision system is not functioning properly, the driver is warned
by the PCS warning light and a warning message displayed on the multi-information
display.
Mas ...