| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001LF5U |
| Model Year Start: 2020 | Model: GR Corolla | Prod Date Range: [09/2019 - 04/2020] |
| Title: CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for Sedan, Gasoline Model): DCM POWER SOURCE CIRCUIT; 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020] | ||
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DCM POWER SOURCE CIRCUIT |
DESCRIPTION
This is the power source circuit to operate the DCM (Telematics Transceiver).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - BATTERY AND GROUND) |
|
(a) Disconnect the I72 DCM (Telematics Transceiver) connector. |
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I72-4 (E) - Body ground |
Always |
Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I72-1 (+B) - I72-4 (E) |
Always |
11 to 14 V |
|
I72-7 (IG2) - I72-4 (E) |
Engine switch on (IG) |
11 to 14 V |
|
I72-8 (ACC) - I72-4 (E) |
Engine switch on (ACC) |
11 to 14 V |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
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