DTC P1794:17 [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]

id09021c933200

DESCRIPTION

High voltage in power supply circuit (+B2)

DETECTION CONDITION

•  Keyless control module power supply circuit (+B2) voltage is 16.5 V or more for 0.5 s.

POSSIBLE CAUSE

•  PCM DTC is stored

•  Generator malfunction

•  Keyless control module malfunction

DESCRIPTION	High voltage in power supply circuit (+B2)
DETECTION CONDITION	• Keyless control module power supply circuit (+B2) voltage is 16.5 V or more for 0.5 s.
POSSIBLE CAUSE	• PCM DTC is stored • Generator malfunction • Keyless control module malfunction

Diagnostic Procedure

Step	Inspection		Action
1	CONFIRM PCM DTC • Perform the PCM DTC inspection using the M-MDS. (See ON-BOARD DIAGNOSTIC TEST [MZR 1.5, MZR 1.6].) (See ON-BOARD DIAGNOSTIC TEST [MZR 2.0, MZR 2.5].) (See ON-BOARD DIAGNOSTIC TEST [MZR 2.0 DISI i-stop].) (See ON-BOARD DIAGNOSTIC TEST [MZR 2.3 DISI Turbo].) (See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].) (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.0].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR 1.5, MZR 1.6].) (See DTC TABLE [MZR 2.0, MZR 2.5].) (See DTC TABLE [MZR 2.0 DISI i-stop].) (See DTC TABLE [MZR 2.3 DISI Turbo].) (See DTC TABLE [MZR-CD 2.2].) (See DTC TABLE [SKYACTIV-G 2.0].)
1		No	Go to the next step.
2	INSPECT GENERATOR • Inspect the generator. (See GENERATOR INSPECTION [MZR 1.5, MZR 1.6].) (See GENERATOR INSPECTION [MZR 2.0, MZR 2.5].) (See GENERATOR INSPECTION [MZR 2.0 DISI i-stop].) (See GENERATOR INSPECTION [MZR 2.3 DISI Turbo].) (See GENERATOR INSPECTION [MZR-CD 2.2].) (See GENERATOR INSPECTION [SKYACTIV-G 2.0].) • Is there any malfunction?	Yes	Replace the generator, then go to the next step. (See GENERATOR REMOVAL/INSTALLATION [MZR 1.5, MZR 1.6].) (See GENERATOR REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].) (See GENERATOR REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].) (See GENERATOR REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].) (See GENERATOR REMOVAL/INSTALLATION [MZR-CD 2.2].) (See GENERATOR REMOVAL/INSTALLATION [SKYACTIV-G 2.0].)
2		No	Go to the next step.
3	VERIFY TROUBLESHOOTING COMPLETED • Operate the advanced key to activate the keyless control module. • Clear the DTC from the keyless control module using the M-MDS. (See CLEARING DTC [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) • Operate the advanced key to activate the keyless control module. • Perform the advanced keyless entry and push button start system DTC inspection using the M-MDS. (See DTC INSPECTION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) • Is the same DTC present?	Yes	Replace the keyless control module, then go to the next step. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION.)
3		No	Go to the next step.
4	VERIFY THAT NO OTHER DTCs ARE PRESENT • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)
4		No	DTC troubleshooting completed.