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Home >> Mazda >> 2012 >> 6 s Touring Plus >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> On-Board Diagnostic [Advanced Keyless Entry System And Push Button Start System] >> DTC P1708:29 [Advanced Keyless Entry And Push Button Start System] >> Diagnostic Procedure
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Diagnostic Procedure

Step Inspection Action
1 INSPECT CPP SWITCH CONNECTOR CONDITION 
  • Switch the ignition to off.
  • Disconnect the negative battery cable.
  • Disconnect the CPP switch 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 12.
No Go to the next step.
2 INSPECT CPP SWITCH GROUND CIRCUIT FOR OPEN CIRCUIT 
  • Inspect for continuity between CPP switch terminal B (wiring harness-side) and body ground.
  • Is there continuity?
Yes Go to the next step.
No Repair or replace the wiring harness for a possible open circuit, then go to Step 12.
3 INSPECT CPP SWITCH 
Yes Replace the CPP switch, then go to Step 12.
(See CLUTCH PEDAL REMOVAL/INSTALLATION [G66M-R] .)
No Go to the next step.
4 INSPECT STARTER INTERLOCK SWITCH CONNECTOR CONDITION 
  • Disconnect the starter interlock switch 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 12.
No Go to the next step.
5 INSPECT STARTER INTERLOCK SWITCH 
Yes Replace the starter interlock switch, then go to Step 12.
No Go to the next step.
6 INSPECT PCM CONNECTOR CONDITION 
  • Disconnect the PCM 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 12.
No Go to the next step.
7 INSPECT KEYLESS CONTROL MODULE CONNECTOR CONDITION 
  • 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 12.
No Go to the next step.
8 INSPECT STARTER RELAY CIRCUIT FOR SHORT TO GROUND 
  • Inspect for continuity between the following terminals and body ground:
    • Starter relay terminal E (wiring harness-side)
    • Starter relay terminal A (wiring harness-side)
  • Is there continuity?
Yes Repair or replace the wiring harness for a possible short to ground, then go to Step 12.
No Go to the next step.
9 INSPECT STARTER RELAY CIRCUIT FOR SHORT TO GROUND 
  • Inspect for continuity between starter interlock switch terminal B (wiring harness-side) and body ground.
  • Is there continuity?
Yes Repair or replace the wiring harness for a possible short to ground, then go to Step 12.
No Go to the next step.
10 INSPECT PCM 
  • Reconnect the disconnected connectors.
  • Reconnect the negative battery cable.
  • Switch the ignition to ON.
  • Measure the voltage between PCM terminal 1BB (wiring harness-side) and body ground.
  • Is the voltage normal?

    (See PCM INSPECTION [MZR 2.5] .)

Yes Go to the next step.
No Replace the PCM, then go to Step 12.
(See PCM REMOVAL/INSTALLATION [MZR 2.5] .)
11 INSPECT KEYLESS CONTROL MODULE 
  • Switch the ignition to off.
  • Disconnect the negative battery cable.
  • Remove the starter relay.
  • Reconnect the negative battery cable.
  • Measure the voltage between keyless control module terminal 4AA (wiring harness-side) and body ground with the clutch depressed:
  • Is the voltage more than 4 V?
Yes Go to the next step.
No Replace the keyless control module, then go to the next step.
(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
12 VERIFY TROUBLESHOOTING COMPLETED 
Yes Repeat the inspection from Step 1.
If the malfunction recurs, replace the keyless control module, then go to the next step.
(See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION [ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM] .)
No Go to the next step.
13 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.