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Home >> Mazda >> 2019 >> CX-9 Signature >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> On-Board Diagnostic - Rear One-Touch Walk-In Control Module >> DTC B10E7-11: IG1 Relay Circuit Malfunction [Rear One-Touch Walk-In Control Module] >> Diagnostic Procedure
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Diagnostic Procedure

DTC B10E7:11 [REAR ONE-TOUCH WALK-IN CONTROL MODULE] DIAGNOSTIC PROCEDURE

Step Inspection Action
1 INSPECT IG1 RELAY
Yes Go to the next step.
No Replace the IG1 relay, then go to Step 4.
(See RELAY LOCATION .)
2 INSPECT REAR ONE-TOUCH WALK-IN CONTROL MODULE CONNECTOR CONDITION
  • Disconnect the rear one-touch walk-in control module connector.
  • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection.
  • Is the connector normal?
Yes Go to the next step.
No Repair or replace the connector, then go to Step 4.
3 INSPECT REAR ONE-TOUCH WALK-IN CONTROL MODULE POWER SUPPLY CIRCUIT
  • Disconnect the rear one-touch walk-in control module connector.
  • Connect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  • Switch the ignition ON (engine off or on) and wait for 1 s or more.
  • Measure the voltage at the following terminals (wiring harness-side):
    • Rear one-touch walk-in control module terminal 1G
  • Is the voltage B+?
Yes Go to the next step.
No Inspect the METER 10 A fuse.
  • If the fuse is blown:
    • Refer to the wiring diagram and verify whether or not there is a common connector between METER 1 10A fuse-rear one-touch walk-in control module terminal 1G.

If there is a common connector:
  • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.
  • Repair or replace the malfunctioning part.

If there is no common connector:
  • Repair or replace the wiring harness which has a short to ground.
  • Replace the fuse.
  • If the fuse is damaged:
    • Replace the fuse.
  • If the fuse is normal:
    • Refer to the wiring diagram and verify whether or not there is a common connector between IG1 relay terminal C-rear one-touch walk-in control module terminal 1G.

If there is a common connector:
  • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.
  • Repair or replace the malfunctioning part.

If there is no common connector:
  • Repair or replace the wiring harness which has an open circuit.

Go to the next step.
4 VERIFY THAT REPAIRS HAVE BEEN COMPLETED
Yes Repeat the inspection from Step 1.
No Go to the next step.
5 VERIFY IF OTHER DTCs DISPLAYED
  • Are any other DTCs displayed?
Yes Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.
(See DTC TABLE [REAR ONE-TOUCH WALK-IN CONTROL MODULE] .)
No DTC troubleshooting completed.