NO.1 DOOR CANNOT BE LOCKED/UNLOCKED BY TRANSMITTER (CARD KEY)

id0903c7801200

1 | Door cannot be locked/unlocked by transmitter (card key)
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POSSIBLE CAUSE | • Malfunction in transmitter (card key) battery or transmitter (card key) • Malfunction in keyless control module • Malfunction in keyless receiver • Malfunction in BCM • Wrong usage • The after-market electrical parts are interfering with the keyless entry system

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | • Attempt to lock/unlock the door with the transmitter (card key). • Does the operation indicator light (LED) illuminate? | Yes | Go to the next step.
No | Go to Step 10.
2 | • Did the customer activate the transmitter (card key) within operative area (Within 1 m {3 ft}from area around vehicle)? | Yes | Go to the next step.
| No | The system is normal. Explain to the customer that the system does not work without the system operative area.
3 | • Did the customer use the keyless entry system in particular area, such as being near TV towers, power plants, power lines, or factories? | Yes | The system is normal. Area of operation is subject. Explain effect of outside interference on the transmitter (card key) to the customer.
No | Go to the next step.
4 | • Did the customer activate the keyless entry system with the key inserted into the steering lock? | Yes | The system is normal. Explain to the customer that the system does not work with the key inserted into the steering lock.
No | Go to the next step.
5 | • Are any of the following after-market electrical parts on the vehicle? ― Cellular phone ― Radio-wave equipment ― Remote engine starter ― TV ― Other | Yes | Go to the next step.
No | Go to Step 7.
6 | • Disconnect the after-market electrical parts connectors and attempt to lock/unlock the doors with the transmitter (card key). • Does the keyless entry system work? | Yes | The system is normal. The after-market electrical parts are interfering with the keyless entry system.
No | Go to the next step.
7 | • Is there repair record of the customer's keyless entry system? | Yes | Go to the next step.
No | Go to Step 10.
8 | • Does the malfunction occur after the repair? | Yes | Go to the next step.
No | Go to Step 10.
9 | • Is the malfunction corrected when the ID numbers for all the customer's transmitters (card key) are updated? (See CARD KEY ID CODE REGISTRATION [WITH ADVANCED KEYLESS SYSTEM].) | Yes | System is normal. (Explain to the customer that the malfunction occurred because all the transmitter (card key) ID numbers were not updated even though the body control module or a transmitter (card key) was replaced in the previous servicing.)
No | Go to the next step.
10 | • Visually inspect the transmitter (card key) battery for the following: (See CARD KEY BATTERY REPLACEMENT [WITH ADVANCED KEYLESS SYSTEM].) ― Battery direction (polarity) ― Battery type (CR2025) ― Corrosion, soiling, deformation of battery terminals (plus/minus terminals). ― Contact malfunction between the battery terminal and battery when battery is inserted • Is there any malfunction? | Yes | Battery insertion direction, battery type problem: • Properly install the battery or replace the battery with a specified one (CR2025), then go to the next step. Malfunction with the battery terminals: • Clean corrosion and soiling or repair the terminal, then go to the next step.
No | Go to Step 12.
11 | • Does the keyless entry system operate properly? | Yes | Troubleshooting completed.
No | Go to the next step.
12 | Note • Use a new monitor battery (normal battery) or one from another vehicle which operates normally. • Replace the battery in all the transmitters (card key) with a monitor-use battery (normal battery). (See CARD KEY BATTERY REPLACEMENT [WITH ADVANCED KEYLESS SYSTEM].) • Does operation indicator light (LED) for each transmitter (card key) operate? | Yes | Go to the next step.
No | If the operation indicator light (LED) does not illuminate, replace the transmitter (card key), then go to the Step 24.
13 | Note • Inspect for all transmitters (card key). • Inspect while the batteries for all of the transmitters (card key) are replaced with monitor-use batteries (normal battery). • Verify the operation of keyless entry system using all of the transmitters (card key). • Does the keyless entry system operate properly? | Yes | Replace the transmitter (card key) battery, and then go to Step 24. (See CARD KEY BATTERY REPLACEMENT [WITH ADVANCED KEYLESS SYSTEM].)
No | Go to the next step.
14 | • Inspect for the keyless receiver installation. • Is the bracket securely installed on the keyless receiver? | Yes | Go to the next step.
No | Install the bracket securely, and then go to the next step.
15 | • Inspect the ground wire on the keyless receiver bracket. • Is the ground wire tighten on the bracket? | Yes | Go to the next step.
No | Tighten the ground wire, then go to the next step.
16 | • Turn the ignition switch to the LOCK position. • Measure the voltage at keyless receiver terminal A? • Is the voltage B+? | Yes | Go to the next step.
No | • Inspect ROOM 15 A fuse. • Inspect and repair the wiring harness between the fuse block and the keyless receiver as necessary.
17 | • Measure the voltage at keyless receiver terminal E? • Is the voltage 0 V? | Yes | Go to the next step.
No | • Inspect and repair the wiring harness between the ground wire and the keyless receiver as necessary. • Re-tighten the ground wire as necessary.
18 | • Turn the ignition switch to the LOCK position. • Disconnect the negative battery cable. • Disconnect the keyless receiver connector and the keyless control module connector. • Inspect the wiring harness between the following terminals for an open or short circuit. ― Terminal C to terminal 2U • Is the wiring harness normal? | Yes | Go to the next step.
No | Repair or replace the wiring harness between the keyless receiver connector and keyless control module connector, then go to the next step.
19 | • Measure the signal wave pattern of keyless control module terminal 2U using an oscilloscope while the transmitter (card key) advanced key is operated with the auxiliary key removed from the ignition key cylinder. • Does the wave pattern change when the advanced key is operated? Note • Perform the oscilloscope setting using 0.5 V/DIV (Y), 100 ms/DIV (X), DC range. | Yes | Go to the next step.
No | Replace the keyless receiver, and then go to Step 24.
20 | • Measure the voltage at the keyless control module terminals 2B, 2D and 2I. ― Terminal 2B: IG1 voltage ― Terminal 2D: B+ ― Terminal 2I: ACC voltage • Is the voltage as above? | Yes | Go to the next step.
No | • Inspect for fuse. • Inspect and repair the wiring harness between the keyless control module and the fuse block as necessary.
21 | • Measure the voltage at keyless control module terminal 2C? • Is the voltage 0 V? | Yes | Go to the next step.
No | • Inspect and repair the wiring harness between the ground wire and the keyless control module as necessary. • Re-tighten the ground wire as necessary.
22 | • Monitor the following PIDs for the keyless control module using the WDS or equivalent: ― DRSW_D (Front door latch switch) ― DRSW_ALL (All doors) ― TR/LG_SW (Liftgate latch switch) • Does each monitor value agree with the door open/close condition? | Yes | • Inspect for open or short circuit in wiring harness between keyless control module terminal 2R terminal and BCM terminal 7I. ― If the wiring harness is not normal, repair or replace malfunctioning part. ― If the wiring harness is normal, go to the next step.
No | • Inspect door switch for suspect door. • Inspect for open or short circuit in wiring harness between suspect door switch and BCM.
23 | • Measure the voltage at the BCM terminals 6A, 6B and 6G while operating the transmitter (card key). ― Lock all doors with the transmitter (card key): 1.0 V or less→B+→1.0 V or less • (normal lock: 6A terminal) • (double lock: 6G terminal) ― Unlock any door with the transmitter (card key): 1.0 V or less→B+→1.0 V or less (6B terminal) • Is the voltage as above? | Yes | Inspect the following and repair or replace the malfunctioning location. • Wiring harness between BCM and door lock actuator (open circuit) • Door lock actuator (Short circuit in internal circuit) After inspection and repair, go to the next step.
No | Inspect the following and repair or replace the malfunctioning location. • Wiring harness between BCM and door lock actuator (short circuit) • If there is no malfunction with the door lock actuator harness (no short circuit in internal circuit) and the door lock actuator, replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION.) • Then go to the next step.
24 | • Does the keyless entry system operate properly? | Yes | Troubleshooting completed. Explain repairs to the customers
No | Re-inspect the malfunction symptoms, then repeat form Step 1 if malfunction recurs.