LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Toyota >> 2012 >> Prius Three >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Safety Connect System (Except Plug-In) (Diagnostics - Introduction) >> Safety Connect System >> Diagnostic Trouble Code Chart >> Diagnostic Trouble Code Chart
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Trouble Code Chart

HINT: 

If a trouble code is stored during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See" column below.

DCM (TELEMATICS TRANSCEIVER)

DTC Code Detection Item Trouble Area See
B1570 Manual (SOS) Switch Red Indicator Malfunction 1. Map light assembly
2. Wire harness or connector
3. DCM (Telematics Transceiver)
Refer to DTC B1570: Manual (SOS) Switch Red Indicator Malfunction
B1571 Manual (SOS) Switch Green Indicator Malfunction 1. Map light assembly
2. Wire harness or connector
3. DCM (Telematics Transceiver)
Refer to DTC B1571: Manual (SOS) Switch Green Indicator Malfunction
B1572 Telephone Microphone Error 1. Wire harness or connector
2. Telephone microphone assembly
3. Map light assembly
4. DCM (Telematics Transceiver)
Refer to DTC B1572: Telephone Microphone Error
B1573 Short in Telephone Antenna Circuit 1. DCM (Telematics Transceiver)
2. Telephone and GPS antenna assembly
3. Wire harness or connector (Telephone and GPS antenna cord)
Refer to DTC B1573: Short in Telephone Antenna Circuit; DTC B15CB: Telematics Transceiver Antenna Disconnected
B15CB Telematics Transceiver Antenna Disconnected 1. DCM (Telematics Transceiver)
2. Telephone and GPS antenna assembly
3. Wire harness or connector (Telephone and GPS antenna cord)
Refer to DTC B1573: Short in Telephone Antenna Circuit; DTC B15CB: Telematics Transceiver Antenna Disconnected
B1583 GPS Signal Unreceived 1. Telephone and GPS antenna assembly
2. DCM (Telematics Transceiver)
Refer to DTC B1583: GPS Signal Unreceived
B15A8 Telematics Transceiver Malfunction DCM (Telematics Transceiver) Refer to DTC B15A8: Telematics Transceiver Malfunction
B15C0 Short in GPS Antenna 1. DCM (Telematics Transceiver)
2. Wire harness or connector (Telephone and GPS antenna cord)
3. Telephone and GPS antenna assembly
Refer to DTC B15C0: Short in GPS Antenna; DTC B15C1: Open in GPS Antenna
B15C1 Open in GPS Antenna 1. DCM (Telematics Transceiver)
2. Wire harness or connector (Telephone and GPS antenna cord)
3. Telephone and GPS antenna assembly
Refer to DTC B15C0: Short in GPS Antenna; DTC B15C1: Open in GPS Antenna
B15C4 Airbag Signal Malfunction/Not Input 1. Airbag system
2. Wire harness or connector
3. Center airbag sensor assembly
4. DCM (Telematics Transceiver)
Refer to DTC B15C4: Airbag Signal Malfunction/Not Input
B15C5 Manual Button Malfunction 1. DCM (Telematics Transceiver)
2. Map light assembly
3. Wire harness or connector
Refer to DTC B15C5: Manual Button Malfunction
B15CC Backup Battery Failure 1. Wire harness or connector
2. BUB (Back-Up Battery)
3. DCM (Telematics Transceiver)
Refer to DTC B15CC: Backup Battery Failure
B15EC Backup Battery Degradation BUB (Back-Up Battery) Refer to DTC B15EC: Backup Battery Degradation