Toyota Prius 2010 Repair Manual page 123

The hybrid control system and air conditioning system output DTCs separately. Inspect DTCs following the
flow chart for the hybrid control system first if any DTCs from those systems are output simultaneously.
PROCEDURE
1. CHECK CAN COMMUNICATION SYSTEM
(a) Using the Techstream to check if the CAN communication system is functioning normally.
Result:
CAN DTC is not output
CAN DTC is output
B
GO TO CAN COMMUNICATION SYSTEM
A
2. CHECK DIAGNOSTIC TROUBLE CODE
(a) Check if DTCs for the air conditioning system and the hybrid control system are output using the
Techstream.
Result:
Only DTC B1473 is output
DTCs B1473 and P3108 are output simultaneously (B1498 is not output)
DTCs B1473 and B1498 are output simultaneously (P3108 is not output)
DTCs B1473, B1498 and P3108 are output simultaneously
DTCs other than P3108 are output for hybrid control system
C
GO TO HYBRID CONTROL SYSTEM
B
GO TO DTC B1498/98
A
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU -
3.
COMPRESSOR WITH MOTOR)
CAUTION:
Do not disconnect the connector on the high-voltage side.
2010 Toyota Prius
Result
Result
Proceed to
A
B
A
B
C
Proceed to
Repair Manual