1) Turn ON the ignition switch.
2) Observe the Parking/Neutral Detection Switch Input parameter on the scan tool while operating the selector lever. Does the Parking/Neutral Detection Switch Input parameter show ON when the selector lever is shifted to the P or N position, and OFF when shifted to a position other than P or N?
Yes
=>Go to Parking switch signal input check.
No (Does not turn ON in the P position)
=>Go to Inspection for open circuit in P position signal circuit.
No (Does not turn ON in the N position)
=>Go to Inspection for open circuit in N position signal circuit.
No (Does not turn ON in the P and N positions)
=>Go to P/N position switch signal circuit check using fused jumper wire.
1) Turn OFF the ignition switch.
2) Disconnect the Fuse and Relay Box harness connector (C4).
3) Connect a fused jumper wire between the P/N position switch signal circuit of the Fuse and Relay Box harness connector (pin 11 of C4) and the battery power supply.
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.).
4) Observe the Parking/Neutral Detection Switch Input parameter on the scan tool. Does the Parking/Neutral Detection Switch Input parameter show ON?
Yes
No
=>Go to Inspection for open circuit in P/N position switch signal circuit.
1) Inspect the P/N position switch signal circuit between the wireless access module (pin 28 of B14) and the Fuse and Relay Box (pin 11 of C4) 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.).
Yes
=>Go to Wireless access module harness connector inspection.
No
Repair the circuit as necessary.
1) Inspect the BACK UP(IG1) 7.5A fuse. Is the result normal?
Yes
=>Go to Inspection for open circuit in inhibitor switch power supply circuit.
No
Replace the fuse as necessary. If the fuse blows out again, repair the short to ground in the circuits relating to the fuse.
1) Inspect the power supply circuit between the BACK UP(IG1) 7.5A fuse and the inhibitor switch (pin 2 of E41) 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.).
Yes
=>Go to Inspection for open circuit in inhibitor switch signal circuit.
No
Repair the circuit as necessary.
1) Inspect the P position signal circuit between the inhibitor switch (pin 6 of E41) and the Fuse and Relay Box (pin 3 of C96) 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 N position signal circuit between the inhibitor switch (pin 9 of E41) and the Fuse and Relay Box (pin 1 of C96) 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 Inhibitor switch harness connector inspection.
No
Repair the circuit as necessary.
1) Inspect the P position signal circuit between the inhibitor switch (pin 6 of E41) and the Fuse and Relay Box (pin 3 of C96) 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.).
Yes
=>Go to Inhibitor switch harness connector inspection.
No
Repair the circuit as necessary.
1) Inspect the N position signal circuit between the inhibitor switch (pin 9 of E41) and the Fuse and Relay Box (pin 1 of C96) 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.).
Yes
=>Go to Inhibitor switch harness connector inspection.
No
Repair the circuit as necessary.
1) Observe the Parking Position Input parameter on the scan tool while operating the selector lever. Does the Parking Position Input parameter show ON when the selector lever is shifted to the P position, and OFF when shifted to a position other than P?
Yes
Go to Intermittent conditions of wireless access module.
Refer to "229.Security and Locks Control 42D.Symptom intermittent conditions of wireless access module".
No
=>Go to Parking switch signal input check using fused jumper wire.
1) Turn OFF the ignition switch.
2) Disconnect the selector lever harness connector (C72).
3) Connect a fused jumper wire between the parking switch signal circuit and the ground circuit of the selector lever harness connector (pins 2 and 7 of C72).
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.).
4) Turn ON the ignition switch.
5) Observe the Parking Position Input parameter on the scan tool. Does the Parking Position Input parameter show ON when the fused jumper wire is connected and OFF when disconnected?
Yes
=>Go to Select lever harness connector inspection.
No
=>Go to Inspection for open circuit in parking switch signal circuit.
1) Inspect the signal circuit between the wireless access module (pin 24 of B14) and the parking switch (pin 2 of C72) 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 ground circuit between the parking switch (pin 7 of C72) 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.
No
Repair the circuit as necessary.
1) Inspect for poor connections at the inhibitor switch harness connector (pins 2, 6, and 9 of E41). 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 Inhibitor switch inspection.
No
Repair the connections as necessary.
1) Inspect the installation status of the inhibitor switch. Is the result normal?
Yes
Replace the inhibitor switch.
Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) inhibitor switch removal".
Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) inhibitor switch installation".
No
Repair as necessary.
1) Inspect for poor connections at the selector lever harness connector (pins 2 and 7 of C72). 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
Replace the selector lever.
Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) selector lever removal".
Refer to "5.Transmission, Transaxle 5B.Automatic(AWR6B45) selector lever installation".
No
Repair the connections as necessary.
1) Inspect for poor connections at the wireless access module harness connector (pins 24 and 28 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.
No
Repair the connections as necessary.
Note
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".
Procedure completion
1) Clear the DTC with a scan tool.
2) Turn OFF the ignition switch.
3) Turn ON the ignition switch.
4) Shift the selector lever to the D position.
5) Shift the selector lever to the P position.
6) Observe the DTC information with a scan tool.