C1735
C1735 Ignition Signal
Description
The BCM monitors the IGN ON signal on the CAN line and compares it to it's direct IGN ON signal. When these two signals do not match, the BCM sets C1735.
DTC Logic
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.
- Activate and display TPMS transmitter IDs
- Display tire pressure reported by the TPMS transmitter
- Read TPMS DTCs
- Register TPMS transmitter IDs
DTC Detection Logic
DTC Confirmation Procedure
1. PERFORM DTC CHECK
1 On SELECT DIAG MODE, select "DTC check" screen.
2 Check display contents on "DTC check" screen.
Is C1735 displayed in "DTC check" display?
YES
Refer to "Diagnosis Procedure".
NO
Inspection End.
Diagnosis Procedure
NOTE:
The Signal Tech II Tool (J-50190) can be used to perform the following functions. Refer to the Signal Tech II User Guide for additional information.
- Activate and display TPMS transmitter IDs
- Display tire pressure reported by the TPMS transmitter
- Read TPMS DTCs
- Register TPMS transmitter IDs
Malfunction Code No. 54 (DTC C1735)
1. CAN IGNITION SIGNAL
Check BCM IGN RLY signal with SDT. Refer to [ECU Diagnosis Information: BCM] Pinout Values and Diagnostic Parameters.
Are the inspection results normal with the ignition switch ON?
YES
GO TO 2.
NO
Check CAN system. Refer to [LAN System: Basic Inspection] LAN System Basic Inspection.
2. BCM POWER SUPPLY
Check BCM power supply (ignition ON). Refer to [Power Supply and Ground Circuit Check] Power Supply and Ground Circuit Check.
Is the power supply with the ignition switch ON normal?
YES
GO TO 3.
NO
Repair power supply as necessary.
3. DRIVE VEHICLE
Clear DTC and then test drive the vehicle and check the low tire pressure warning lamp.
Does the vehicle operate without any low tire pressure warning lamp?
YES
Inspection End.
NO
Replace BCM. Refer to [BCM: Removal and Installation] Removal and Replacement.
Special Repair Requirement
Refer to "Special Repair Requirement" in [C1708 - C1711 Data from Transmitter Not Being Received] C1708.