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Home >> Mazda >> 2011 >> 3 Mazdaspeed, 2.3 3 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> On-Board Diagnostic [Advanced Keyless Entry And Push Button Start System] >> DTC B10E7:12 [Advanced Keyless Entry And Push Button Start System]
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DTC B10E7:12 [Advanced Keyless Entry And Push Button Start System]

DESCRIPTION  Short to power supply in IG1 relay circuit 
DETECTION CONDITION 
  • IG1 relay output monitor is on for 0.5 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 2G-Keyless control module terminal 3D
  • Relay block malfunction
  • Keyless control module malfunction
G07874847
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.
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.
No Go to the next step.
3 INSPECT IG1 RELAY OUTPUT 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):
    • Relay block terminal 2G
  • Is there any voltage?
Yes Repair or replace the wiring harness for a possible short to power supply, then go to Step 5.
No Go to the next step.
4 INSPECT RELAY BLOCK 
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] ).
No Go to the next step.
5 VERIFY TROUBLESHOOTING COMPLETED 
Yes Replace the keyless control module, then go to the next step.
(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION ).
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] ).
No DTC troubleshooting completed.