Code No.B2350
Lighting switch malfunction
Code No.B2351 Wiper/washer switch malfunction
caution |
- Before
replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication
circuit are normal.
- When the ETACS-ECU of vehicles without KOS is replaced, the encrypted code of the ignition
key needs to be registered to the ETACS-ECU. (If the encrypted code is not registered, the engine
cannot be started. Register the encrypted code as described in Immobilizer System - How
to Register Key ID .)
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TROUBLE JUDGEMENT
The ETACS-ECU receives the signals related to lighting and wiper/washer from
the column switch. If the fail information data is included in the signal from column switch,
the diagnosis code No. B2350 (lighting switch) or B2351 (wiper/washer switch) is stored.
COMMENTS ON TROUBLE SYMPTOM
The lighting switch, wiper/washer switch or the ETACS-ECU may have a problem.
PROBABLE CAUSES
- Malfunction of lighting switch (with built-in column-ECU)
- Malfunction of wiper/washer switch
- Malfunction of the ETACS-ECU
DIAGNOSIS PROCEDURE
STEP 1. Check whether the diagnosis code is reset.
Check again if the diagnosis code is set to the ETACS-ECU.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
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(3)Check if the diagnosis code No. B2350 or B2351 is set.
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Q.
Is the diagnosis code set?
Code No. B2351 is set. : Go to Step 2.
Code No. B2350 is set. : Go to Step 3.
No diagnosis code is set. : The trouble can be an intermittent malfunction (GROUP 00 - How to Cope
with Intermittent Malfunction ).
STEP 2. Check whether the diagnosis code is reset.
Check again if the diagnosis code is set to the ETACS-ECU.
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(1)Replace the wiper/washer switch.
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(2)Erase the diagnosis code.
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(3)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
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(4)Check if diagnosis code is set.
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Q.
Is the diagnosis code set?
Go to Step 3.
The diagnosis is complete.
STEP 3. Check whether the diagnosis code is reset.
Check again if the diagnosis code is set to the ETACS-ECU.
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(1)Replace the lighting switch (with built-in column-ECU).
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(2)Erase the diagnosis code.
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(3)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
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(4)Check if diagnosis code is set.
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Q.
Is the diagnosis code set?
Replace the ETACS-ECU.
The diagnosis is complete.