id070228733100
| DTC |
B102A:11 |
Flame sensor circuit short to ground |
|---|---|---|
| B102A:15 |
Flame sensor circuit short to power supply or open |
|
| B1D22:11 |
Coolant temperature sensor circuit short to ground |
|
| B1D22:15 |
Coolant temperature sensor circuit short to power supply or open |
|
| B1D22:62 |
Coolant temperature sensor signal compare failure |
|
| B1D23:11 |
Overheat sensor circuit short to ground |
|
| B1D23:15 |
Overheat sensor circuit short to power supply or open |
|
|
DETECTION CONDITION
|
• CPU detects malfunction in sensor (water heater unit)
|
|
|
POSSIBLE CAUSE
|
• Water heater unit malfunction
|
|
Diagnostic procedure
| STEP |
INSPECTION |
ACTION |
|
|---|---|---|---|
|
1
|
INSPECT WATER HEATER UNIT
• Replace the water heater unit. (See
WATER HEATER UNIT REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER].)
• Perform the Combustion Test.
• Are any DTCs present?
|
Yes
|
Go to the applicable DTC troubleshooting.
|
|
No
|
Troubleshooting completed.
|
||