Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001N4M2 |
Model Year Start: 2021 |
Model: Corolla |
Prod Date Range: [04/2020 - 09/2022] |
Title: TELEMATICS: TELEMATICS SYSTEM (for HV Model): Remote Engine Starter does not Operate; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022] |
Remote Engine Starter does not Operate
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WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the DCM (telematics transceiver), refer to Registration.
w/o Smart Key System: Click here
w/ Smart Key System: Click here
PROCEDURE
1.
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CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function)
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(a) Check that the hybrid system can be started by pressing the power switch.
Result
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Proceed to
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Hybrid system can be started.
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A
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Hybrid system cannot be started.
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B
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A
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HINT:
If registration is not performed after replacing any of the following parts, the remote engine start and stop will not be available.
-
Certification ECU (smart key ECU assembly)
-
DCM (telematics transceiver)
(a) Perform remote engine start and stop registration.
w/o Smart Key System: Click here
w/ Smart Key System: Click here
(b) Check if the problem symptom recurs.
Result
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Proceed to
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System does not return to normal.
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A
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System returns to normal.
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B
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B |
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END
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A
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|
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(a) Clear the DTCs.
Body Electrical > Smart Access > Clear DTCs
(b) Check for DTCs.
Body Electrical > Smart Access > Trouble Codes
Result
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Proceed to
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DTC B2285 is not output.
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A
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DTC B2285 is output.
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B
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A
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4.
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CHECK DCM (TELEMATICS TRANSCEIVER)
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(a) Disconnect the DCM (telematics transceiver) connector.
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*a
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Front view of harness connector
(to DCM (Telematics Transceiver))
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|
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(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
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Condition
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Specified Condition
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I143-30 (SLPD) - Body ground
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Steering locked
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11 to 14 V
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Steering unlocked
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Below 1.5 V
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HINT:
The steering locks when any door is opened with the shift lever in P and the power switch off. The steering unlocks when the power switch is turned on (ACC).
NG
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|
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5.
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CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY))
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(a) Disconnect the I143 DCM (telematics transceiver) connector.
(b) Disconnect the I1 certification ECU (smart key ECU assembly) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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I143-30 (SLPD) - I1-12 (SLP)
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Always
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Below 1 Ω
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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