Toyota Prius 2010 Repair Manual page 195

(a) Replace the navigation receiver assembly with a known good one and check if the same problem occurs
again .
OK:
Same problem does not occur.
NG
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
OK
END (NAVIGATION RECEIVER ASSEMBLY WAS DEFECTIVE)
7. REPLACE RADIO RECEIVER ASSEMBLY
(a) Replace the radio receiver assembly with a known good one and check if the same problem occurs again
.
OK:
Same problem does not occur.
NG
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
OK
END (RADIO RECEIVER ASSEMBLY WAS DEFECTIVE)
CHECK HARNESS AND CONNECTOR (A/C CONTROL ASSEMBLY - SPIRAL WITH SENSOR
8.
CABLE SUB-ASSEMBLY)
2010 Toyota Prius
(a) Disconnect the connector from the A/C control assembly.
(b) Measure the resistance according value(s) in the table below.
Standard Resistance:
Tester Connection
L20-3 (SWO) - L52-10 (AC1) Always
L20-3 (SWO) - Body ground
Condition Specified Condition
Below 1 Ω
Always 10 kΩ or higher
Repair Manual