DTC B1D26:11, B1D26:12, B1D26:13, B1D26:71 [WATER HEATER SYSTEM]SM2445578
DTC B1D26:11, B1D26:12, B1D26:13, B1D26:71 [WATER HEATER SYSTEM]

id070228733400

DTC

B1D26:11

Blower fan circuit short to ground

B1D26:12

Blower fan circuit short to power supply

B1D26:13

Blower fan circuit open

B1D26:71

Blower fan actuator stuck

DETECTION CONDITION
• CPU detects malfunction in blower fan circuit
POSSIBLE CAUSE
• Water heater unit malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
INSPECT WATER HEATER UNIT
• Perform the water heater system operation check.
• Clear DTCs using the M-MDS.
• Perform the water heater unit DTC inspection using the M-MDS. (See DTC DISPLAY [WATER HEATER SYSTEM].) (See DTC DISPLAY [FULL-AUTO AIR CONDITIONER].)
• Are DTCs B1D26:11, B1D26:12, B1D26:13 or B1D26:71 displayed?
Yes
Replace the water heater unit, then go to the next step.
No
Go to the next step.
2
VERIFY AFTER REPAIR PROCEDURE
• Perform after repair procedure. (See DTC DISPLAY [WATER HEATER SYSTEM].) (See DTC DISPLAY [FULL-AUTO AIR CONDITIONER].)
• Are any DTCs present?
Yes
Go to the applicable DTC troubleshooting.
No
Troubleshooting completed.