DTC B1309[14] Push Start Switch Short to Ground or Open (Wireless Access Module (Hi-version [Passive Entry and Start System]))

1. Wireless access module system check

Refer to "71.Security and Locks Control 10S.Troubleshooting(Wireless Access Module (Hi-version [Passive Entry and Start System])) Diagnostic system check-Wireless Access Module (Hi-version[Passive Entry and Start System])".

2. Engine start/stop button signal input check

1) Turn OFF the ignition switch.

2) Remove the engine start/stop button.

3) Open and close the driver side door.

4) Observe the Start Switch 1 Input parameter and Start Switch 2 Input parameter on the scan tool.

Note

After opening or closing the door, perform the operation within 50 seconds.

The displayed Start Switch 1 Input parameter and Start Switch 2 Input parameter are OFF.

=>Go to Engine start/stop button signal input check using fused jumper wire.

The displayed Start Switch 1 Input parameter is ON.

=>Go to Inspection for short to ground in engine start/stop button 1 signal circuit.

The displayed Start Switch 2 Input parameter is ON.

=>Go to Inspection for short to ground in engine start/stop button 2 signal circuit.

3. Engine start/stop button signal input check using fused jumper wire

1) Connect a fused jumper wire between the engine start/stop button 1 signal circuit of the engine start/stop button harness connector (pin 7 of B44) and the body ground.

2) Connect a fused jumper wire between the engine start/stop button 2 signal circuit of the engine start/stop button harness connector (pin 2 of B44) and the body ground.

Refer to "LHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

3) Observe the Start Switch 1 Input parameter and Start Switch 2 Input parameter on the scan tool.

The displayed Start Switch 1 Input parameter and Start Switch 2 Input parameter are ON.

Replace the engine start/stop button.

Refer to "9.Body, Cab, Accessories 9C.Electrical Control, Entertainment engine start/stop button removal".

Refer to "9.Body, Cab, Accessories 9C.Electrical Control, Entertainment engine start/stop button installation".

=>Go to Repair verification.

The displayed Start Switch 1 Input parameter is OFF.

=>Go to Inspection for open circuit in engine start/stop button 1 signal circuit and ground circuit.

The displayed Start Switch 2 Input parameter is OFF.

=>Go to Inspection for open circuit in engine start/stop button 2 signal circuit and ground circuit.

4. Inspection for short to ground in engine start/stop button 1 signal circuit

1) Inspect the engine start/stop button 1 signal circuit between the wireless access module (pin 26 of B14) and the engine start/stop button (pin 7 of B44) for a short to ground. Is the result normal?

Refer to "LHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to Wireless access module replacement.

Repair the circuit as necessary.

=>Go to Repair verification.

5. Inspection for short to ground in engine start/stop button 2 signal circuit

1) Inspect the engine start/stop button 2 signal circuit between the wireless access module (pin 27 of B14) and the engine start/stop button (pin 2 of B44) for a short to ground. Is the result normal?

Refer to "LHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to Wireless access module replacement.

Repair the circuit as necessary.

=>Go to Repair verification.

6. Inspection for open circuit in engine start/stop button 1 signal circuit and ground circuit

1) Inspect the engine start/stop button 1 signal circuit between the wireless access module (pin 26 of B14) and the engine start/stop button (pin 7 of B44) for an open circuit or high resistance. Is the result normal?

Refer to "LHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

2) Inspect the engine start/stop button 1 ground circuit between the engine start/stop button (pin 4 of B44) and the body ground for an open circuit or high resistance. Is the result normal?

Refer to "LHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

3) Are all of the results normal?

Yes

=>Go to Wireless access module harness connector inspection.

Repair the circuit as necessary.

=>Go to Repair verification.

7. Inspection for open circuit in engine start/stop button 2 signal circuit and ground circuit

1) Inspect the engine start/stop button 2 signal circuit between the wireless access module (pin 27 of B14) and the engine start/stop button (pin 2 of B44) for an open circuit or high resistance. Is the result normal?

Refer to "LHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

2) Inspect the engine start/stop button 2 ground circuit between the engine start/stop button (pin 5 of B44) and the body ground for an open circuit or high resistance. Is the result normal?

Refer to "LHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

3) Are all of the results normal?

Yes

=>Go to Wireless access module harness connector inspection.

Repair the circuit as necessary.

=>Go to Repair verification.

8. Wireless access module harness connector inspection

1) Inspect for poor connections at the wireless access module harness connector (pins 26 and 27 of B14). Is the connection status normal?

Refer to "LHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD Power Door Locks (Wireless Access Module (Hi-version))" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to Wireless access module replacement.

Repair the connections as necessary.

=>Go to Repair verification.

9. Wireless access module replacement

Note

After replacing the wireless access module, programming must be performed.

Refer to "9.Body, Cab, Accessories 9Z.Body, Cab, Accessories Electrical Control wireless access module removal".

Refer to "9.Body, Cab, Accessories 9Z.Body, Cab, Accessories Electrical Control wireless access module installation".

Refer to "9.Body, Cab, Accessories 9Z.Body, Cab, Accessories Electrical Control wireless access module setting (with passive entry and start system)".

Procedure completion

=>Go to Repair verification.

10. Repair verification

1) Clear the DTC with a scan tool.

2) Turn OFF the ignition switch.

3) Press the engine start/stop button 5 times or more.

4) Observe the DTC information with a scan tool.