Lexus ES: Destination Information Undefined (C1AB8)
DESCRIPTION
This DTC is stored when correct destination information is not sent from the main body ECU (multiplex network body ECU) and destination information cannot be confirmed after a blind spot monitor sensor has been replaced.
Blind Spot Monitor Master| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AB8 | Destination Information Undefined | The blind spot monitor sensor cannot communicate with the main body ECU |
|
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1AB8 | Destination Information Undefined | The blind spot monitor sensor cannot communicate with the main body ECU |
|
CAUTION / NOTICE / HINT
NOTICE:
- When checking for DTCs, make sure that the blind spot monitor system is turned on.
-
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
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PROCEDURE
| 1. | CHECK DTC |
(a) Check for CAN communication system DTCs.
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OK:
CAN communication system DTCs are not output.
| NG |  | GO TO CAN COMMUNICATION SYSTEM |
|
| 2. | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
(a) Replace the main body ECU (multiplex network body ECU) with a new or known good one.
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|
| 3. | RECHECK DTC |
(a) Recheck for DTCs and check if the same DTC is output again.
Body Electrical > Blind Spot Monitor Master > Trouble Codes Body Electrical > Blind Spot Monitor Slave > Trouble Codes| Result | Proceed to |
|---|---|
| No DTCs are output | A |
| DTC C1AB8 is output ("Blind Spot Monitor Master") | B |
| DTC C1AB8 is output ("Blind Spot Monitor Slave") | C |
| A | | END |
| B | | REPLACE BLIND SPOT MONITOR SENSOR RH |
| C | | REPLACE BLIND SPOT MONITOR SENSOR LH |
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Blind Spot Monitor Master Module Beam Axis Inspection Incomplete (C1ABB)
DESCRIPTION This DTC is stored when a beam axis inspection has not been performed for the blind spot monitor sensor RH. HINT: This DTC is always stored after replacing a blind spot monitor sensor. The
Blind Spot Monitor Slave Module Beam Axis Inspection Incomplete (C1ABC)
DESCRIPTION This DTC is stored when a beam axis inspection has not been performed for the blind spot monitor sensor LH. HINT: This DTC is always stored after replacing a blind spot monitor sensor. The
Short to GND or Open in Buzzer (C1ABE)
DESCRIPTION
DTC C1ABE is stored when the blind spot monitor sensor LH detects a short to ground or open in the RCTA buzzer (blind spot monitor buzzer) circuit.
DTC No. Detection Item DTC
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Master Module Horizontal Axis Misalignment (C1AC1)
DESCRIPTION This DTC is stored when the angle of the blind spot monitor sensor RH deviates more than the allowable range from the horizontal axis. HINT:
If a drum tester such as a speedometer tester, brake/speedometer combination tester or chassis dynamometer is used with the blind spot monitor s
Components
COMPONENTS ILLUSTRATION *1 VENTILATION HOSE *2 PURGE VALVE (PURGE VSV) *3 NO. 1 FUEL VAPOR FEED HOSE *4 NO. 2 SURGE TANK STAY *5 INTAKE AIR SURGE TANK ASSEMBLY *6 AIR SURGE TANK TO INTAKE MANIFOLD GASKET *7 VACUUM HOSE SUB-ASSEMBLY *8 VACUUM HOSE *9 NO.
