1) Inspect the METER(+B) 10A fuse and METER(IG1) 5A fuse. Is the result normal?
Yes
=>Go to Inspection for short to ground in key monitor warning light control 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) Turn OFF the ignition switch.
2) Disconnect the wireless access module harness connector (B15).
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) Turn ON the ignition switch.
4) Check the key monitor warning light. Does the warning light illuminate?
Yes
Repair the short to ground in the key monitor warning light control circuit between the wireless access module (pin 37 of B15) and the instrument panel cluster (pin 23 of B7).
No
=>Go to Inspection for short to power supply in key monitor warning light control circuit.
1) Turn OFF the ignition switch.
2) Remove the METER(+B) 10A fuse and METER(IG1) 5A fuse.
3) Turn ON the ignition switch.
4) Measure the voltage between the key monitor warning light control circuit of the wireless access module harness connector (pin 37 of B15) and the body ground with a DMM. Is the voltage more than or equal to the specified value?
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.).
Value: 1 V
Yes
Repair the short to the battery power supply circuit or short to the ignition power supply circuit in the key monitor warning light control circuit between the wireless access module (pin 37 of B15) and the instrument panel cluster (pin 23 of B7).
No
=>Go to Key monitor warning light control circuit inspection using fused jumper wire.
1) Turn OFF the ignition switch.
2) Install the METER(+B) 10A fuse and METER(IG1) 5A fuse.
3) Connect a fused jumper wire between the key monitor warning light control circuit of the wireless access module harness connector (pin 37 of B15) and the body ground with a DMM.
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) Check the key monitor warning light. Does the warning light illuminate?
Yes
=>Go to Wireless access module harness connector inspection.
No
=>Go to Inspection for open circuit in instrument panel cluster battery power supply circuit.
1) Turn OFF the ignition switch.
2) Disconnect the instrument panel cluster harness connector (B7).
3) Connect a test lamp between the battery power supply circuit of the instrument panel cluster harness connector (pin 1 of B7) and the body ground. Does the test lamp illuminate?
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 key monitor warning light control circuit.
No
Repair the open circuit or high resistance in the battery power supply circuit between the METER(+B) 10A fuse and the instrument panel cluster (pin 1 of B7).
1) Inspect the key monitor warning light control circuit between the wireless access module (pin 37 of B15) and the instrument panel cluster (pin 23 of B7) 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 Instrument panel cluster harness connector inspection.
No
Repair the circuit as necessary.
1) Inspect for poor connections at the wireless access module harness connector (pin 37 of B15). 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.
1) Inspect for poor connections at the instrument panel cluster harness connector (pins 1 and 23 of B7). 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 instrument panel cluster.
Note
Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. instrument panel cluster removal".
Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. instrument panel cluster installation".
Refer to "9.Body, Cab, Accessories 9E.Instrumentation, Driver Info. instrument panel cluster setting".
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) Perform the Meter Indicator with a scan tool.
4) Check the warning light while commanding the key monitor warning light ON and OFF with a scan tool. Does the key monitor warning light illuminate when commanded ON and turn OFF when commanded OFF?
Yes
Observe the DTC information with a scan tool.
No