PRECAUTION
IGNITION SWITCH EXPRESSIONS
(a) The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section.
Expression |
Ignition Switch (Position) |
Ignition Switch (Condition) |
---|---|---|
Ignition switch off |
LOCK |
Off |
Ignition switch ACC |
ACC |
On (ACC) |
Ignition switch ON |
ON |
On (IG) |
Engine start |
START |
Start |
WHEN DISCONNECTING BATTERY CABLE
(a) After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) battery terminal notices before proceeding with work.
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WHEN AUTOMATIC COLLISION NOTIFICATION HAS ACTIVATED
(a) Perform "ACN CALL END" with Techstream to terminate ACN (Automatic Collision Notification) with the call center.
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(b) The BUB (Back-Up Battery) must be replaced.
WHEN DISCONNECTING CONNECTORS FROM DCM (TELEMATICS TRANSCEIVER)
(a) The ignition switch must be off.
WHEN REPLACING THE DCM (TELEMATICS TRANSCEIVER)
(a) After installing a new Telematics Data Communication Module (DCM (Telematics Transceiver)), perform "DCM ACTIVATION" with the Techstream. This allows the Telematics service provider to register the new DCM (Telematics Transceiver) and to delete the old DCM (Telematics Transceiver) information from their database.
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NOTICE:
Do not replace the DCM (Telematics Transceiver) with one from another vehicle.
WHEN UNABLE TO CONTACT WITH CALL CENTER BUT NO DTC
(a) This may occur when the cellular signal strength was very weak. Check "DCM OPERATION HISTORY" with the Techstream.
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WHEN DIAGNOSING DCM (TELEMATICS TRANSCEIVER)
(a) While attempting to diagnose the DCM (Telematics Transceiver), do not use a DCM (Telematics Transceiver) from another vehicle. Each DCM (Telematics Transceiver) is registered to a specific VIN and should not be tested in another vehicle.
Toyota CH-R Service Manual > Can Communication System: Check Bus 4 Line for Short to +B
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and +B when no
resistance exists between terminal 22 (CA2H) of the central gateway ECU (network
gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 7 (CA2L) of the central
gateway ECU (network gateway ECU) and t ...
Toyota CH-R Service Manual > Navigation System: Sending Malfunction (Navigation to APGS) (U0073,U0100,U0129,U0140,U0155,U0164,U0198)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the CAN communication circuit.
DTC No.
Detection Item
DTC Detection Condition
Trouble Area
U0073
Sending Malfunction (Navigation to APGS)
CAN bus connec ...