DESCRIPTION
INSPECTION PROCEDURE
CHECK DTC (PRE-CRASH SAFETY SYSTEM)
DTC B2015 Open in Right Side Upper MOS
DTC B2016 Open in Right Side Lower MOS
DTC B2020 Open in Left Side Upper MOS
DTC B2021 Open in Left Side Lower MOS
DTC B2025 Right Side Current Detection Circuit Malfunction Hi
DTC B2026 Right Side Current Detection Circuit Malfunction Lo
DTC B2027 Right Side Over-Current Malfunction
DTC B2030 Left Side Current Detection Circuit Malfunction Hi
DTC B2031 Left Side Current Detection Circuit Malfunction Lo
DTC B2032 Left Side Over-Current Malfunction
DTC B2035 Power Supply Relay Adherence Malfunction
DTC B2040 EEPROM Malfunction
DTC B2041 Fall of Raised Voltage
DTC B2043 Fall of B+ Voltage
DTC B2047 Seat Belt Control ECU Inner Circuit Malfunction
DESCRIPTION
The DTCs above are stored during the self diagnosis of the seat belt control ECU.
| DTC Code | DTC Detection Condition | Trouble Area |
| B2015 |
Open in the right side upper MOS. | Seat belt control ECU |
| B2016 |
Open in the right side lower MOS. | Seat belt control ECU |
| B2020 |
Open in the left side upper MOS. | Seat belt control ECU |
| B2021 |
Open in the left side lower MOS. | Seat belt control ECU |
| B2025 |
Malfunction in the right side current detection HI circuit. | Seat belt control ECU |
| B2026 |
Malfunction in the right side current detection LO circuit. | Seat belt control ECU |
| B2027 |
Overcurrent in the right side circuit. | Seat belt control ECU |
| B2030 |
Malfunction in the left side current detection HI circuit. | Seat belt control ECU |
| B2031 |
Malfunction in the left side current detection LO circuit. | Seat belt control ECU |
| B2032 |
Overcurrent in the left side circuit. | Seat belt control ECU |
| B2035 |
Adherence malfunction in the power supply relay. | Seat belt control ECU |
| B2040 |
EEPROM malfunction. | Seat belt control ECU |
| B2041 |
Decline in raised voltage. | Seat belt control ECU |
| B2043 |
Decline in B+ voltage. | Seat belt control ECU |
| B2047 |
Malfunction in the inner circuit of the seat belt control ECU. | Seat belt control ECU |
INSPECTION PROCEDURE
| 1.CHECK DTC (PRE-CRASH SAFETY SYSTEM) |
Using the intelligent tester, enter the following menus: Body / Pre-Crash / Trouble Code.
Check for DTCs ().
Result| Result | Proceed to |
OK
(DTC is not output) | A |
NG
(for LHD) | B |
NG
(for RHD | C |
| | REPLACE SEAT BELT CONTROL ECU ()
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| | REPLACE SEAT BELT CONTROL ECU ()
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| A | |
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| USE SIMULATION METHOD TO CHECK ()
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