Diagnostic Procedure

WARNING: This page is about a different car, the 2010 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

DTC P1708:29 (ADVANCED KEYLESS ENTRY AND PUSH BUTTON START SYSTEM) DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	INSPECT STARTER INTERLOCK SWITCH CONNECTOR AND TERMINALS Switch the ignition to off. Disconnect the negative battery cable. 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.
1		No	Go to the next step.
2	INSPECT STARTER INTERLOCK SWITCH Inspect the starter interlock switch. (See STARTER INTERLOCK SWITCH INSPECTION [LF, L5] .) (See STARTER INTERLOCK SWITCH INSPECTION [L3 WITH TC] .) Is there any malfunction?	Yes	Replace the starter interlock switch, then go to Step 12.
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 12.
3		No	Go to the next step.
4	INSPECT STARTER INTERLOCK SWITCH CIRCUIT FOR SHORT TO GROUND Starter interlock switch and keyless control module connectors are disconnected. Inspect for continuity between the following terminal (wiring harness-side) and body ground: Starter interlock switch terminal A Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to ground, then go to Step 12.
4		No	Go to the next step.
5	INSPECT CPP SWITCH CONNECTOR AND TERMINALS 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.
5		No	Go to the next step.
6	INSPECT CPP SWITCH Inspect the CPP switch. (See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION [LF, L5] .) (See CLUTCH PEDAL POSITION (CPP) SWITCH INSPECTION [L3 WITH TC] .) Is there any malfunction?	Yes	Replace the CPP switch, then go to Step 12. (See CLUTCH PEDAL REMOVAL/INSTALLATION .)
6		No	Go to the next step.
7	INSPECT CPP SWITCH CIRCUIT FOR OPEN CIRCUIT Starter interlock switch, CPP switch and keyless control module connectors are disconnected. Inspect for continuity between the following terminals (wiring harness-side): CPP switch terminal A-Keyless control module terminal 4V CPP switch terminal B-Body ground Is there continuity?	Yes	Go to the next step.
7		No	Repair or replace the wiring harness for a possible open circuit, then go to Step 12.
8	INSPECT STARTER CUT RELAY CONNECTOR AND TERMINALS Disconnect the starter cut relay 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.
8		No	Go to the next step.
9	INSPECT STARTER CUT RELAY Inspect the starter cut relay. (See STARTER CUT RELAY INSPECTION [MTX] .) Is there any malfunction?	Yes	Replace the starter cut relay, then go to Step 12. (See STARTER CUT RELAY REMOVAL/INSTALLATION [MTX] .)
9		No	Go to the next step.
10	INSPECT STARTER CUT RELAY CIRCUIT FOR SHORT TO GROUND OR OPEN CIRCUIT Starter interlock switch, CPP switch, starter cut relay and keyless control module connectors are disconnected. Reconnect the negative battery cable. Switch the ignition to ON. Measure the voltage at the following terminal (wiring harness-side): Starter cut relay terminal A Is there any voltage?	Yes	Go to the next step.
10		No	Repair or replace the wiring harness for a possible short to ground or open circuit, then go to Step 12.
11	INSPECT STARTER CUT RELAY CIRCUIT FOR SHORT TO POWER SUPPLY Starter interlock switch, CPP switch, starter cut relay and keyless control module connectors are disconnected. Measure the voltage at the following terminal (wiring harness-side): Starter cut relay terminal D Is there any voltage?	Yes	Repair or replace the wiring harness for a possible short to power supply, then go to the next step.
11		No	Go to the next step.
12	VERIFY TROUBLESHOOTING COMPLETED Make sure to reconnect the disconnected connectors. Reconnect the negative battery cable. Operate the advanced key to activate the keyless control module. 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 same DTC present?	Yes	Replace the keyless control module, then go to the next step. (See KEYLESS CONTROL MODULE REMOVAL/INSTALLATION .)
12		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] .)
13		No	DTC troubleshooting completed.