DTC B112A:17 [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]

id09021c404900

DESCRIPTION

High voltage in IG2 monitor input circuit

DETECTION CONDITION

•  IG2 monitor is on for 1 s when the ignition switch is off.

POSSIBLE CAUSE

•  Relay block connector or terminals malfunction

•  Keyless control module connector or terminals malfunction

•  Short to power supply in wiring harness between the following terminals:

―  Relay block terminal 1F—Keyless control module terminal 2E

•  Relay block malfunction

•  Keyless control module malfunction

DESCRIPTION	High voltage in IG2 monitor input circuit
DETECTION CONDITION	• IG2 monitor is on for 1 s when the ignition switch is off.
POSSIBLE CAUSE	• Relay block connector or terminals malfunction • Keyless control module connector or terminals malfunction • Short to power supply in wiring harness between the following terminals: ― Relay block terminal 1F—Keyless control module terminal 2E • Relay block malfunction • Keyless control module malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY RELATED STORED DTC • 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 DTC B112A:12 also present?	Yes	Go to the applicable DTC inspection. (See DTC B112A:12 [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)
1		No	Go to the next step.
2	INSPECT RELAY BLOCK CONNECTOR AND TERMINALS • Switch the ignition to off. • Disconnect the negative battery cable. • Disconnect the relay block connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 6.
2		No	Go to the next step.
3	INSPECT KEYLESS CONTROL MODULE CONNECTOR AND TERMINALS • Disconnect the keyless control module connector. • Inspect the connector and terminals (corrosion, damage, pin disconnection). • Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 6.
3		No	Go to the next step.
4	INSPECT IG2 MONITOR INPUT CIRCUIT FOR SHORT TO POWER SUPPLY • Relay block and keyless control module connectors are disconnected. • Reconnect the negative battery cable. • Measure the voltage at the following terminal (wiring harness-side): ― Keyless control module terminal 2E • Is there any voltage?	Yes	Repair or replace the wiring harness for a possible short to power supply, then go to Step 6.
4		No	Go to the next step.
5	INSPECT RELAY BLOCK • Inspect the relay block. (See RELAY BLOCK INSPECTION [WITH ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) • Is there any malfunction?	Yes	Replace the relay block, then go to the next step. (See RELAY BLOCK REMOVAL/INSTALLATION [WITH ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].)
5		No	Go to the next step.
6	VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect the disconnected connectors. • Reconnect the negative battery cable. • Switch the ignition to off using the advanced key. • Clear the DTC from the keyless control module using the M-MDS. (See CLEARING DTC [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM].) • Switch the ignition to off using the advanced key. • 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 DTC B112A:17 present?	Yes	Replace the keyless control module, then go to the next step. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION.)
6		No	Go to the next step.
7	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].)
7		No	DTC troubleshooting completed.