DTC B112A:11 [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM]

id09021c404600

DESCRIPTION

Short to ground in IG2 relay circuit

DETECTION CONDITION

•  IG2 relay output monitor is off for 0.5 s when the ignition switch is ON.

POSSIBLE CAUSE

•  Relay block connector or terminals malfunction

•  Keyless control module connector or terminals malfunction

•  Short to ground in wiring harness between the following terminals:

―  Relay block terminal 2A—Keyless control module terminal 3G

•  Relay block malfunction

•  Keyless control module malfunction

DESCRIPTION	Short to ground in IG2 relay circuit
DETECTION CONDITION	• IG2 relay output monitor is off for 0.5 s when the ignition switch is ON.
POSSIBLE CAUSE	• Relay block connector or terminals malfunction • Keyless control module connector or terminals malfunction • Short to ground in wiring harness between the following terminals: ― Relay block terminal 2A—Keyless control module terminal 3G • Relay block malfunction • Keyless control module malfunction

Diagnostic Procedure

Step	Inspection		Action
1	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 5.
1		No	Go to the next step.
2	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 5.
2		No	Go to the next step.
3	INSPECT IG2 RELAY OUTPUT CIRCUIT FOR SHORT TO GROUND • Relay block and keyless control module connectors are disconnected. • Inspect for continuity between the following terminal (wiring harness-side) and body ground: ― Relay block terminal 2A • Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to ground, then go to Step 5.
3		No	Go to the next step.
4	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].)
4		No	Go to the next step.
5	VERIFY TROUBLESHOOTING COMPLETED • Make sure to reconnect the disconnected connectors. • Reconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR 1.5, MZR 1.6].) (See BATTERY REMOVAL/INSTALLATION [MZR 2.0, MZR 2.5].) (See BATTERY REMOVAL/INSTALLATION [MZR 2.0 DISI i-stop].) (See BATTERY REMOVAL/INSTALLATION [MZR 2.3 DISI Turbo].) (See BATTERY REMOVAL/INSTALLATION [MZR-CD 2.2].) (See BATTERY REMOVAL/INSTALLATION [SKYACTIV-G 2.0].) • 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, then to ON. • 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.)
5		No	Go to the next step.
6	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].)
6		No	DTC troubleshooting completed.