DTC B2456, B2457, B2458, B2459, B2460, B2461, B2462 [WATER HEATER SYSTEM]
id070228815700
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DTC |
B2456 |
Coolant sensor short |
|---|---|---|
|
B2457 |
Coolant sensor interrupted |
|
|
B2458 |
Overheat sensor short |
|
|
B2459 |
Overheat sensor interrupted |
|
|
B2460 |
Flame sensor short |
|
|
B2461 |
Flame sensor interrupted |
|
|
B2462 |
Flame off from max. power Flame off from min. power |
|
|
DETECTION CONDITION
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• CPU detects malfunction in sensor (water heater unit)
|
|
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POSSIBLE CAUSE
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• Water heater unit malfunction
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Diagnostic procedure
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STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
INSPECT WATER HEATER UNIT
• Replace the water heater unit.
• Perform the Combustion Test.
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC troubleshooting.
|
|
No
|
Troubleshooting completed.
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