Inspection steps Subaru BRZ ZC

Inspection steps

Scheme 128

1. Check if the connectors are connected. Turn the engine switch OFF. Check if the connectors are properly connected to the collation ECM (smart key ECM assembly) and the front door outer handle assembly. Criteria: The connectors are properly connected. NG: Connect the connectors properly. OK: Go to Next Step
2. Check the harnesses and connectors (front door outer handle assembly - collation ECM (smart key ECM assembly)). Disconnect the D41 and D48 collation ECM (smart key ECM assembly) connectors. Disconnect the E1 front door outer handle assembly connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D41-12 (CLG1) - E1-6 (ANT1) Always 1 ohmsor less D41-13 (CG1B) - E1-3 (ANT2) Always 1 ohmsor less D48-11 (GND) - chassis ground Always 1 ohmsor less D41-12 (CLG1) - chassis ground Always 10 kohms or more D41-13 (CG1B) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
3. Inspect the collation ECM (smart key ECM assembly) (output to the driver's side electrical key antenna). Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM assembly). Reconnect the E1 front door outer handle assembly connector. Using an oscilloscope, check the waveform. NOTE: Ensure that the entry cancel function (one of the customize setting available for the entry & start system) is not enabled. (Refer to CUSTOMIZE PARAMETERS ) CRITERIA Tester connection Switch conditions Tool setting Specified condition D41-12 (CLG1) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are closed. The electrical key transmitter sub-assembly is not inside the vehicle. The electrical key transmitter sub-assembly is inside the detection area (1) . All doors are locked by a wireless operation. 2 V/DIV., 500 ms/DIV. Pulse generation (Refer to Waveform 1) D41-12 (CLG1) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are closed. The electrical key transmitter sub-assembly is not inside the vehicle. The electrical key transmitter sub-assembly is outside the detection area (2) . All doors are locked by a wireless operation. 2 V/DIV., 500 ms/DIV. Pulse generation (Refer to Waveform 1) D41-13 (CG1B) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are closed. The electrical key transmitter sub-assembly is not inside the vehicle. All doors are locked using the electrical key transmitter sub-assembly. 2 V/DIV., 500 ms/DIV. Pulse generation (Refer to waveform 2) (1) For a detailed description on inside the entry function detection area, refer to "Operation check". (Refer to OPERATION CHECK ) (2) For a detailed description on outside the entry function detection area, refer to "Operation check". (Refer to OPERATION CHECK ) NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
4. Replace the front door outer handle assembly (driver's door). Temporarily replace the front door outer handle assembly with a new one or one that functions normally. (Refer to DISASSEMBLY ) Next
5. DTC check Clear the diagnostic code. (Refer to DTC CHECK / CLEAR ) Recheck the diagnostic code. (Refer to DTC CHECK / CLEAR ) Criteria: B27A1 is not output. NG: Replacement of the collation ECM (smart key computer assembly) OK: END (front door outer handle assembly malfunction)

The collation ECM (smart key ECM assembly) generates a request signal and transmits it to the front door outer handle assembly (passenger's side electrical key antenna) every 250 ms. In order for the collation ECM (smart key ECM assembly) to detect the approach of the key towards the vehicle, a signal requesting a response from the key must be transmitted every 250 ms to an approximately 1 m (3.28 feet) wide area beside the passenger's door.

The DTC B27A2 is saved by the collation ECM (smart key ECM assembly) when an open circuit is detected between the collation ECM (smart key ECM assembly) and the front door outer handle assembly (passenger's side electrical key antenna) (that is, between terminals CLG2 and ANT1, or between terminals CG2B and ANT2).

VEHICLE STATUS AND FAIL-SAFE UPON FAILURE DETECTION

CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE

Scheme 129

Scheme 130

1. Check if the connectors are connected. Turn the engine switch OFF. Check if the connectors are properly connected to the collation ECM (smart key ECM assembly) and the front door outer handle assembly. Criteria: The connectors are properly connected. NG: Connect the connectors properly. OK: Go to Next Step
2. Check the harnesses and connectors (front door outer handle assembly - collation ECM (smart key ECM assembly)). Disconnect the D41 and D48 collation ECM (smart key ECM assembly) connectors. Disconnect the F5 front door outer handle assembly connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D41-11 (CLG2) - F5-6 (ANT1) Always 1 ohmsor less D41-10 (CG2B) - F5-3 (ANT2) Always 1 ohmsor less D48-11 (GND) - chassis ground Always 1 ohmsor less D41-11 (CLG2) - chassis ground Always 10 kohms or more D41-10 (CG2B) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
3. Inspect the collation ECM (smart key ECM assembly) (output to the passenger's side electrical key antenna). Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM assembly). Reconnect the F5 front door outer handle assembly connector. Using an oscilloscope, check the waveform. NOTE: Ensure that the entry cancel function (one of the customize setting available for the entry & start system) is not enabled. (Refer to CUSTOMIZE PARAMETERS ) CRITERIA Tester connection Switch conditions Tool setting Specified condition D41-11 (CLG2) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are closed. The electrical key transmitter sub-assembly is not inside the vehicle. The electrical key transmitter sub-assembly is inside the detection area (1) . All doors are locked by a wireless operation. 2 V/DIV., 500 ms/DIV. Pulse generation (Refer to Waveform 1) D41-11 (CLG2) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are closed. The electrical key transmitter sub-assembly is not inside the vehicle. The electrical key transmitter sub-assembly is outside the detection area (2) . All doors are locked by a wireless operation. 2 V/DIV., 500 ms/DIV. Pulse generation (Refer to Waveform 1) D41-10 (CG2B) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is not outside the vehicle. All doors are closed. The electrical key transmitter sub-assembly is not inside the vehicle. All doors are locked using the electrical key transmitter sub-assembly. 2 V/DIV., 500 ms/DIV. Pulse generation (Refer to waveform 2) (1) For a detailed description on inside the entry function detection area, refer to "Operation check". (Refer to OPERATION CHECK ) (2) For a detailed description on outside the entry function detection area, refer to "Operation check". (Refer to OPERATION CHECK ) NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
4. Replace the front door outer handle assembly (passenger's door). Temporarily replace the front door outer handle assembly with a new one or one that functions normally. (Refer to DISASSEMBLY ) Next
5. DTC check Clear the diagnostic code. (Refer to DTC CHECK / CLEAR ) Recheck the diagnostic code. (Refer to DTC CHECK / CLEAR ) Criteria: The DTC B27A2 is not output. NG: Replacement of the collation ECM (smart key computer assembly) OK: END (front door outer handle assembly malfunction)

The collation ECM (smart key ECM assembly) generates a request signal and transmits it to the indoor electrical key antenna assembly no. 1 (front floor). For the collation ECM (smart key ECM assembly) to detect the key located inside the vehicle, the collation ECM (smart key ECM assembly) must transmit a signal to the inside of the vehicle requesting a response from the key. The DTC B27A5 is saved by the collation ECM (smart key ECM assembly) when an open circuit is detected between the collation ECM (smart key ECM assembly) and the indoor electrical key antenna assembly no. 1 (front floor) (that is, between terminals CLG5 and ANTE5, or between terminals CG5B and CLGB).

VEHICLE STATUS AND FAIL-SAFE UPON FAILURE DETECTION

CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE

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1. Check if the connectors are connected. Turn the engine switch OFF. Check if the connectors are properly connected to the collation ECM (smart key ECM assembly) and the indoor electrical key antenna assembly no. 1. Criteria: The connectors are properly connected. NG: Connect the connectors properly. OK: Go to Next Step
2. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - indoor electrical key antenna no. 1 (front floor)). Disconnect the D41 and D48 collation ECM (smart key ECM assembly) connectors. Disconnect the D26 indoor electrical key antenna assembly no. 1 (front floor) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D41-3 (CLG5) - D26-1 (CLG5) Always 1 ohmsor less D41-2 (CG5B) - D26-3 (CLGB) Always 1 ohmsor less D48-11 (GND) - chassis ground Always 1 ohmsor less D41-3 (CLG5) - chassis ground Always 10 kohms or more D41-2 (CG5B) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
3. Inspect the collation ECM (smart key ECM assembly) (output to the indoor electrical key antenna no. 1 (front floor)). Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM assembly). Reconnect the D26 indoor electrical key antenna assembly no. 1 (front floor) connector. Using an oscilloscope, check the waveform. NOTE: Ensure that the entry cancel function (one of the customize setting available for the entry & start system) is not enabled. (Refer to CUSTOMIZE PARAMETERS ) CRITERIA Inspection terminals Switch conditions Tool setting Specified condition D41-3 (CLG5) - D48-11 (GND) Procedure: The engine switch is OFF. A door is open. A door is closed. 30 seconds elapses. The electrical key transmitter sub-assembly is not inside the vehicle. 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) D41-2 (CG5B) - D48-11 (GND) Procedure: The engine switch is OFF. A door is open. A door is closed. 30 seconds elapses. The electrical key transmitter sub-assembly is not inside the vehicle. 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
4. Replace the indoor electrical key antenna assembly no. 1 (front floor). Temporarily replace the indoor electrical key antenna assembly no. 1 (front floor) with a new one or one that functions normally. Next
5. DTC check Clear the diagnostic code. (Refer to DTC CHECK / CLEAR ) Recheck the diagnostic code. (Refer to DTC CHECK / CLEAR ) Criteria: The DTC B27A5 is not output. NG: Replacement of the collation ECM (smart key computer assembly) OK: END (indoor electrical key antenna assembly no. 1 (front floor) malfunction)

The collation ECM (smart key ECM assembly) generates a request signal and transmits it to the indoor electrical key antenna assembly no. 2 (rear floor)] For the indoor electrical key antenna assembly no. 2 (rear floor) to detect the electrical key transmitter sub-assembly located inside the vehicle, the collation ECM (smart key ECM assembly) must transmit a signal to the inside of the vehicle requesting a response from the electrical key transmitter sub-assembly. The DTC B27A6 is saved by the collation ECM (smart key ECM assembly) when an open circuit is detected between the collation ECM (smart key ECM assembly) and the indoor electrical key antenna assembly no. 2 (rear floor) (that is, between terminals CLG6 and ANTE6, or between terminals CG6B and CLGB).

VEHICLE STATUS AND FAIL-SAFE UPON FAILURE DETECTION

CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE

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1. Check if the connectors are connected. Turn the engine switch OFF. Check if the connectors are properly connected to the collation ECM (smart key ECM assembly) and the indoor electrical key antenna assembly no. 2 (rear floor). Criteria: The connectors are properly connected. NG: Connect the connectors properly. OK: Go to Next Step
2. Check the harnesses and connectors (collation ECM - indoor electrical key antenna assembly no. 2). Disconnect the D40 and D48 collation ECM (smart key ECM assembly) connectors. Disconnect the H15 indoor electrical key antenna assembly no. 2 (rear floor) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D40-11 (CLG6) - H15-1 (ANTE6) Always 1 ohmsor less D40-10 (CG6B) - H15-3 (CLGB) Always 1 ohmsor less D48-11 (GND) - chassis ground Always 1 ohmsor less D40-11 (CLG6) - chassis ground Always 10 kohms or more D40-10 (CG6B) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
3. Check the collation ECM (smart key ECM assembly) (output to the indoor electrical key antenna assembly no. 2). Reconnect the D40 and the D48 connectors of the collation ECM (smart key ECM assembly). Reconnect the D15 indoor electrical key antenna assembly no. 2 (rear floor) connector. Using an oscilloscope, check the waveform. CRITERIA Inspection terminals Switch conditions Tool setting Specified condition D40-11 (CLG6) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is not inside the vehicle. A door is open. A door is closed. Within 30 seconds 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) D40-10 (CG6B) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is not inside the vehicle. A door is open. A door is closed. Within 30 seconds 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
4. Replace the indoor electrical key antenna assembly no. 2 (rear floor). Temporarily replace the indoor electrical key antenna assembly no. 2 (rear floor) with a new one or one that functions normally. (Refer to ELECTRICAL OSCILLATOR KEY (FOR REAR FLOOR) ) Next
5. DTC check Clear the diagnostic code. (Refer to DTC CHECK / CLEAR ) Check for DTC. (Refer to DTC CHECK / CLEAR ) Criteria: The DTC B27A6 is not output. NG: Replacement of the collation ECM (smart key computer assembly) OK: END (indoor electrical key antenna assembly no. 2 (rear floor) malfunction).

The collation ECM (smart key ECM assembly) generates a request signal and transmits it to the indoor electrical key antenna assembly no. 3 (trunk interior antenna). For the collation ECM (smart key ECM assembly) to detect the key located inside the trunk, the collation ECM (smart key ECM assembly) must transmit a signal requesting a response from the key to the inside of the trunk. The DTC B27A7 is saved by the collation ECM (smart key ECM assembly) when an open circuit is detected between the collation ECM (smart key ECM assembly) and the indoor electrical key antenna assembly no. 3 (trunk interior antenna) (that is, between terminals CLG7 and CLG7, or between terminals CG7B and CLGB).

VEHICLE STATUS AND FAIL-SAFE UPON FAILURE DETECTION

CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE

Scheme 135

Scheme 136

1. Check if the connectors are connected. Turn the engine switch OFF. Check if the connectors are properly connected to the collation ECM (smart key ECM assembly) and the indoor electrical key antenna assembly no. 3 (trunk interior antenna). Criteria: The connectors are properly connected. NG: Connect the connectors properly. OK: Go to Next Step
2. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - indoor electrical key antenna assembly no. 3). Disconnect the D40 and D48 collation ECM (smart key ECM assembly) connectors. Disconnect the H9 indoor electrical key antenna assembly no. 3 (trunk interior antenna) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D40-9 (CLG7) - H9-1 (ANTE7) Always 1 ohmsor less D40-8 (CG7B) - H9-3 (CLGB) Always 1 ohmsor less D48-11 (GND) - chassis ground Always 1 ohmsor less D40-9 (CLG7) - chassis ground Always 10 kohms or more D40-8 (CG7B) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
3. Inspect the collation ECM (smart key ECM assembly) (output to the indoor electrical key antenna assembly no. 3 (luggage interior antenna)). Reconnect the D40 and the D48 connectors of the collation ECM (smart key ECM assembly). Reconnect the H9 indoor electrical key antenna assembly no. 3 (trunk interior antenna) connector. Using an oscilloscope, check the waveform. NOTE: Check the customize setting available for the entry & start system as well as the "ignition available area". (Refer to CUSTOMIZE PARAMETERS ) CRITERIA Inspection terminals Switch conditions Tool setting Specified condition D40-9 (CLG7) - D48-11 (GND) Procedure: The engine switch is OFF. A door is open. A door is closed. 30 seconds elapses. The electrical key transmitter sub-assembly is not inside the vehicle. 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) D40-8 (CG7B) - D48-11 (GND) Procedure: The engine switch is OFF. A door is open. A door is closed. 30 seconds elapses. The electrical key transmitter sub-assembly is not inside the vehicle. 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
4. Replace the indoor electrical key antenna assembly no. 3 (trunk interior antenna). Temporarily replace the indoor electrical key antenna assembly no. 3 (trunk interior antenna) with a new one or one that functions normally. (Refer to ELECTRICAL OSCILLATOR KEY (FOR THE TRUNK ROOM) ) Next
5. Do a DTC check again. Clear the diagnostic code. (Refer to DTC CHECK / CLEAR ) Recheck the diagnostic code. (Refer to DTC CHECK / CLEAR ) Criteria: B27A7 is not output. NG: Replacement of the collation ECM (smart key computer assembly) OK: END (indoor electrical key antenna assembly no. 3 (trunk interior antenna) malfunction)

The collation ECM (smart key ECM assembly) generates a request signal and transmits it to the electrical key antenna assembly (trunk exterior antenna). In order for the collation ECM (smart key ECM assembly) to detect the approach of the electrical key transmitter sub-assembly towards the vehicle, the request signal received must be transmitted to an approximately 1.0 m (3.28 feet) wide area beside the trunk. The DTC B27A8 is saved by the collation ECM (smart key ECM assembly) when an open circuit is detected between the collation ECM (smart key ECM assembly) and the electrical key antenna (trunk exterior antenna) (that is, between terminals CLG8 and ANT1, or between terminals CG8B and ANT2).

VEHICLE STATUS AND FAIL-SAFE UPON FAILURE DETECTION

CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE

Scheme 137

Scheme 138

1. Check if the connectors are connected. Turn the engine switch OFF. Check if the connectors are properly connected to the collation ECM (smart key ECM assembly) and the electrical key antenna (trunk exterior antenna). Criteria: The connectors are properly connected. NG: Connect the connectors properly. OK: Go to Next Step
2. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - electrical key antenna (trunk exterior antenna)). Disconnect the D40 and D48 collation ECM (smart key ECM assembly) connectors. Disconnect the H3 electrical key antenna (trunk exterior antenna) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D40-2 (CLG8) - H3-1 (ANT1) Always 1 ohmsor less D40-1 (CG8B) - H3-2 (ANT2) Always 1 ohmsor less D48-11 (GND) - chassis ground Always 1 ohmsor less D40-2 (CLG8) - chassis ground Always 10 kohms or more D40-1 (CG8B) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
3. Inspect the electrical key antenna (trunk exterior antenna) unit. Remove the electrical key antenna (trunk exterior antenna). (Refer to ELECTRICAL OSCILLATOR KEY (FOR OUTSIDE OF THE TRUNK ROOM) ) Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value 1 (CLG8) - 2 (CLGB) Always 1 ohmsor less NG: Replace the electrical key antenna (trunk exterior antenna). OK: Go to Next Step
4. Replacement of the collation ECM (smart key computer assembly) Temporarily replace the collation ECM (smart key ECM assembly) with a new one or one that functions normally. Next
5. DTC check Clear the diagnostic code. (Refer to DTC CHECK / CLEAR ) Recheck the diagnostic code. (Refer to DTC CHECK / CLEAR ) Criteria: B27A8 is not output again. NG: Replace the electrical key antenna (trunk exterior antenna). OK: END (collation ECM (smart key ECM assembly) malfunction)

The entry & start system uses the wireless door lock buzzer to provide various exterior warnings. When the specific conditions for each waning are met, the collation ECM (smart key ECM assembly) transmits a buzzer signal to the main body ECM via the CAN communication. The main body ECM then transmits the signal to the wireless door lock buzzer to sound the buzzer.

Scheme 139

1. Using the SSM3, execute [System Operation Check Mode] (wireless buzzer). Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Enter the following menu items: [Integ. unit mode] -->[Work Support] -->[System Operation Check Mode]. Based on the information displayed by the SSM3, execute [System Operation Check Mode]. MAIN BODY Tester display Tested parts Control range Notes for diagnosis [Keyless Buzzer Output] Wireless door lock buzzer OFF/ON - Criteria: The wireless door lock buzzer beeps. NG: Go to Step 2. OK: Replacement of the collation ECM (smart key computer assembly)
2. Inspect the wireless door lock buzzer unit. Remove the wireless door lock buzzer. (Refer to WIRELESS DOOR LOCK BUZZER ) Inspect the wireless door lock buzzer unit. NG: Replace the wireless door lock buzzer. OK: Go to Next Step
3. Check the harnesses and connectors (main body ECM - wireless door lock buzzer and chassis ground). Disconnect the A63 wireless door lock buzzer connector. Disconnect the A73 main body ECM (multiplex network body ECM) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value A63-1 - A73-1 Always 1 ohmsor less A63-2 - Chassis ground Always 1 ohmsor less A63-1 - Chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Replace the main body ECM (multiplex network body ECM).

If neither the entry door lock/unlock function nor the wireless door lock/unlock function works, it might be due to interference from external radio waves, or due to a defect in the key or a signal circuit located between the door control receiver and the collation ECM (smart key ECM assembly). The signal circuit is shared by the entry function and the wireless door lock function.

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1. Check the battery voltage. Measure the voltage of the vehicle battery. Standard voltage: 11 to 14 V NOTE: You can check if the vehicle battery is discharged by operating the horn. If the voltage is 11 V or less, charge or replace the vehicle battery before performing the operation. Next
2. DTC check Using the mechanical key integrated into the electrical key transmitter sub-assembly, open the driver's door. Connect the SSM3 and check the DTC. (Refer to DTC CHECK / CLEAR ) Criteria: No DTC is output NG: Go to "List of diagnostic codes" (refer to DIAGNOSTIC TROUBLE CODE CHART ). OK: Go to Next Step
3. Check the power door lock control system. Operate the door control switch on the driver's side power window regulator master switch assembly, and check if the door locks or unlocks properly according to the switch operation you have performed. Criteria: The door lock operation is performed properly. NG: Go to "Power door lock control system". OK: Go to Next Step
4. Check the electrical key transmitter sub-assembly. Check if an electrical key transmitter sub-assembly registered to another vehicle is present. RESULT Result Go to An electrical key transmitter sub-assembly registered to another vehicle is not present. A An electrical key transmitter sub-assembly registered to another vehicle is present. B B: Go to Step 6 . A: Go to Next Step
5. Register a new electrical key transmitter sub-assembly. Register a new electrical key transmitter sub-assembly. (Refer to the "immobilizer registration manual") Next
6. Check the entry door lock operation. Using another electrical key transmitter sub-assembly registered to the vehicle, check if an entry lock/unlock operation can be performed 2 or more times in a row. Criteria: The entry lock/unlock operation can be performed properly. NG: Go to Step 9 . OK: Go to Next Step
7. Check the transmitter battery. Check the transmitter battery level of the first electrical key transmitter sub-assembly checked. Hold down the lock switch on the transmitter for 5 seconds and check how many times the LED on the transmitter blinks. RESULT Result Go to The LED on the transmitter does not light up while the switch is held down. A The LED on the transmitter blinks 3 times while the switch is held down. B The LED on the transmitter blinks twice but not for the third time. C NOTE: While in use, the electrical key transmitter sub-assembly transmits voltage information to the collation ECM (smart key ECM assembly). If the voltage is 2.4 V or lower, the collation ECM (smart key ECM assembly) displays [Yes] for [Key Low Battery] (an item under [Current Data Display & Save]). (Refer to DTC CHECK / CLEAR ) To start the engine when the transmitter battery is drained, depress the brake pedal, hold down the engine switch, and place the electrical key transmitter sub-assembly over the engine switch. B: Replacement of the electrical key transmitter sub-assembly C: Replace the transmitter battery. A: Go to Next Step
8. Inspect the transmitter battery unit (voltage). Remove the transmitter battery from the faulty electrical key transmitter sub-assembly. (Refer to TRANSMITTER BATTERY (WITH SMART ENTRY) ) Using tape or the like, attach the lead wire (0.60 mm or less in diameter, including the wire sheath) to the negative terminal. CAUTION: Do not twist the lead wire around the terminal, tuck it into the terminal, or solder it to the terminal. If the terminal is deformed or damaged, the transmitter battery cannot be properly installed. Carefully pull the lead wire out from the position shown in the figure, and insert the previously removed transmitter battery. Measure the voltage of the transmitter battery. NOTE: Measure the transmitter battery voltage by bringing the electrical key transmitter sub-assembly inside the lock entry operating range while operating the lock sensor on the door handle. Perform this measurement when the key is at the room temperature. During signal transmission, the key transmits voltage information to the collation ECM (smart key ECM assembly). If the voltage is 2.4 V or lower, [Yes] is displayed for [Key Low Battery] (an item under [Current Data Display & Save]). (Refer to DTC CHECK / CLEAR ) VOLTAGE Inspection terminals Switch conditions Specified condition Transmitter battery positive terminal (+) - transmitter battery negative terminal (-) Change the power mode to IG OFF, close all doors, and touch the lock sensor. 2.5 - 3.2V NG: Replace the transmitter battery. OK: Replacement of the electrical key transmitter sub-assembly
9. Checking the waveform environment Move the electrical key transmitter sub-assembly towards the door control receiver and check that the wireless and entry functions work properly. NOTE: Try moving the electrical key transmitter sub-assembly closer to the door control receiver, so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by external radio waves or not. If this inspection reveals that the problem occurs in certain locations or during certain periods of time, the problem is likely due to interference from external radio waves. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation. Being close to a broadcast antenna, a large video display, a wireless garage door opener system, a wireless security camera, or a home security system makes the vehicle susceptible to interference from external radio waves. If this is the case, move the vehicle to another location to check if the problem improves. If a tool for checking radio waves such as a signal-strength meter is available, take measurements in the LF band (which is used by the vehicle antenna to create a detection area) and the RF band (which is used by the electrical key transmitter sub-assembly for signal transmission) in the vicinity of the vehicle to check where the radio waves might be present. Criteria: Both the wireless and entry functions work properly. NG: Go to Step 10. OK: Interference from external radio waves
10. Read numerical values using the SSM3 ([ACC SW], [Ignition]. Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Enter the following menu items: [Integ. unit mode] -->[Current Data Display & Save]. Based on the contents of the SSM3 display, read the [Current Data Display & Save]. MAIN BODY Tester display Measurement items / range Normal condition Notes for diagnosis [ACC SW] The engine switch is ON (ACC)/OFF or ON. OFF: The engine switch is OFF. ON: Engine switch is ON (ACC). - [Ignition] The engine switch is ON (IG)/[OFF] or [ON] OFF: The engine switch is OFF. [ON]: Engine switch is ON (IG). - NG: Refer to the troubleshooting procedure for the main body ECM (refer to HOW TO PROCEED WITH TROUBLESHOOTING ). OK: Go to Next Step
11. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - battery and chassis ground). Disconnect the D48 collation ECM (smart key ECM assembly) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D48-11 (GND) - chassis ground Always 1 ohmsor less Measure the voltage according to the following table. VOLTAGE Inspection terminals Inspection conditions Standard value D48-2 (+B) - chassis ground Always 11 - 14V Reconnect the D48 connector of the collation ECM (smart key ECM assembly). NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
12. Check the harnesses and connectors (collation ECM - door control receiver). Disconnect the D40 collation ECM (smart key ECM assembly) connector. Disconnect the H26 door control receiver connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D40-5 (RCO) - H26-4 (+5) Always 1 ohmsor less D40-17 (RDAS) - H26-5 (DATA) Always 1 ohmsor less D40-19 (RSSI) - H26-2 (RSSI) Always 1 ohmsor less D40-5 (RCO) - chassis ground Always 10 kohms or more D40-17 (RDAS) - chassis ground Always 10 kohms or more D40-19 (RSSI) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
13. Inspect the door control receiver unit. Reconnect the H26 door control receiver connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value H26-1 (GND) - chassis ground Always 1 ohmsor less Reconnect the D48 connector of the collation ECM (smart key ECM assembly). NG: Replace the door control receiver. OK: Go to Next Step
14. Unit inspection of the collation ECM (smart key ECM assembly) Reconnect the D40 collation ECM (smart key ECM assembly) connector. Measure the voltage according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D48-11 (GND) - chassis ground Always 1 ohmsor less Measure the voltage according to the following table. VOLTAGE Inspection terminals Inspection conditions Standard value H26-4 (+5) - H26-1 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is not pressed. 1 V or less Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is pressed. 4.5 - 5.5V NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
15. Inspect the door control receiver unit. Measure the voltage according to the following table. VOLTAGE Inspection terminals Inspection conditions Standard value H26-2 (RSSI) - H26-1 (GND) Procedure: All doors are closed. All doors are locked. The electrical key transmitter sub-assembly is not pressed. 11 - 14V Procedure: All doors are closed. All doors are locked. The electrical key transmitter sub-assembly is pressed. 2 V or less H26-5 (DATA) - H26-1 (GND) Procedure: All doors are closed. All doors are locked. The electrical key transmitter sub-assembly is not pressed. 11 - 14V Procedure: All doors are closed. All doors are locked. The electrical key transmitter sub-assembly is pressed. 11 to 14 V -->2 V or less -->11 to 14 V, pulses generated at normal time intervals NG: Replace the door control receiver. OK: Go to Next Step
16. Replacement of the collation ECM (smart key computer assembly) Temporarily replace the collation ECM (smart key ECM assembly) with a new one. CAUTION: When replacing the collation ECM (smart key ECM assembly), it is also necessary to replace all the electrical key transmitter subassemblies. Next
17. Check the wireless door lock control system. Check that the wireless door lock function operates properly. (Refer to OPERATION CHECK ) Criteria: The wireless door lock function operates properly. NG: Replace the main body ECM (multiplex network body ECM). OK: END (collation ECM (smart key ECM assembly) detected)

When doors can be locked or unlocked using the wireless function, it means that the door control receiver and the collation ECM (smart key ECM assembly) are communicating normally. If the entry function does not work, it may be due to one of the following: 1) the entry cancel function is enabled by customization; 2) the entry & start system communication between the electrical key transmitter sub-assembly and the vehicle is faulty, or; 3) electrical interference is present.

Scheme 147

Scheme 148

Scheme 149

Scheme 150

Scheme 151

Scheme 152

Scheme 153

Scheme 154

1. Check the power door lock operation. Operate the door control switch on the power window regulator master switch assembly, and check if the door locks or unlocks properly according to the switch operation you have performed. (Refer to OPERATION CHECK ) Criteria: The door lock operation is performed properly. NG: Go to "Power door lock control system" ("Symptom table"). OK: Go to Next Step
2. Read numerical values using the SSM3 ([Auto Entry Cancel SW]). Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Enter the following menu items: [Keyless access system check] -->[Collation ECM] -->[Current Data Display & Save]. Based on the contents of the SSM3 display, read the [Current Data Display & Save]. ENTRY & START Tester display Measurement items / range Normal condition Notes for diagnosis [Smart Cancel] Entry cancel function setting/[OFF] or [ON] Mode status indication [OFF]: Entry & start system is not cancelled. [ON]: Entry & start system is cancelled. The entry cancel function is disabled by default. If the customer wishes to cancel the entry & start system function (lock/unlock doors holding the key, etc.), you can disable this function by using the customize function (refer to CUSTOMIZE PARAMETERS ). RESULT Result Go to The cancel setting for the entry function is disabled. A The cancel setting for the entry function is enabled. B B: Disable the entry key cancel function. (Refer to CUSTOMIZE PARAMETERS ) A: Go to Next Step
3. Checking radio wave environment Move the electrical key transmitter sub-assembly according to the instructions provided below to inspect the operation. (Refer to OPERATION CHECK ) NOTE: Try moving the electrical key transmitter sub-assembly closer to the door outer handle assembly or the electrical key antenna, so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by external radio waves or not. Although the wireless function and the entry function transmits the same radio wave, the wave logic differs between the two. Due to this, only one of the two functions may be affected by interference from external radio waves, while the other remains unaffected. Move the electrical key transmitter sub-assembly towards the driver's door outer handle assembly and check how the entry lock and unlock operations work on the driver's door. CAUTION: If the key is within 0.2 m of the door outer handle assembly, communication is not possible. Move the electrical key transmitter sub-assembly towards the passenger's door outer handle assembly and check how the entry lock and unlock operations work on the passenger's door. CAUTION: If the key is within 0.2 m of the door outer handle assembly, communication is not possible. Move the electrical key transmitter sub-assembly toward the electrical key antenna (trunk exterior antenna) and check the entry trunk open function. CAUTION: If the key is within 0.2m (0.656 feet) of the rear bumper, communication is not possible. NOTE: If this inspection reveals that the problem occurs in certain locations or during certain periods of time, the problem is likely due to interference from external radio waves. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation. If interference from external radio waves is suspected, inquire the customer if the problem occurs in certain locations. Move the vehicle to another location and perform the following procedure to check if the problem improves. If a tool for checking radio waves such as a signal-strength meter is available, take measurements in the LF band (which is used by the vehicle antenna to create a detection area) and the RF band (which is used by the electrical key transmitter sub-assembly for signal transmission) in the vicinity of the vehicle to check where the radio waves might be present. RESULT Result Go to All operation checks fail. A All operation checks pass. B One of the operation checks passes. C B: Interference from external radio waves C: Proceed to check other problems (check each door using the symptom table) (refer to PROBLEM SYMPTOMS TABLE ). OK: Go to Next Step
4. Perform the keyless access system check. Perform keyless access system check for the following antennas. (Refer to OPERATION CHECK ) Check the electrical key antenna (driver's door): Check if the wireless door lock buzzer beeps when the electrical key transmitter sub-assembly is within 0.7 - 1 m of the front door outer handle assembly (driver's door). Check the electrical key antenna (passenger's door): Check if the wireless door lock buzzer beeps when the electrical key transmitter sub-assembly is within 0.7 - 1 m of the front door outer handle assembly (passenger's door). Check the indoor electrical key antenna no. 1 (front floor). Check if the wireless door lock buzzer beeps when the electrical key transmitter sub-assembly is located at the inspection points. Check the indoor electrical key antenna no. 2 (rear floor): Check if the wireless door lock buzzer beeps when the electrical key transmitter sub-assembly is located at the inspection points. Check the electrical key antenna (trunk exterior antenna). Check if the wireless door lock buzzer beeps when the electrical key transmitter sub-assembly is within 0.7 - 1 m of the electrical key antenna (trunk exterior antenna). Criteria: The wireless door lock buzzer beeps. RESULT Result Go to Failed all diagnostic mode unit inspections. A Failed some diagnostic mode unit inspections (door). B Failed some diagnostic mode unit inspections (indoor). C Failed some diagnostic mode unit inspections (outdoor). D Passed all diagnostic mode unit inspections. E B: Proceed to check other problems (check each door using the symptom table) (refer to PROBLEM SYMPTOMS TABLE ). C: Proceed to check other problems ("ROOM OSCILLATOR DOES NOT RECOGNIZE KEY") (refer to INTERIOR COLLATION IS NG ). D: Proceed to check other problems ("BACK DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE") (refer to SMART TRUNK OPEN OPERATION DOES NOT WORK (WHEN THE TRANSMITTER IS LOCATED OUTSIDE TRUNK) ). E: Replacement of the collation ECM (smart key ECM assembly) OK: Go to Next Step
5. Inspect the electrical key transmitter sub-assembly unit. Check if other keys already registered to the vehicle can be used. RESULT Result Go to No other keys are registered to the vehicle. A Other keys are registered to the vehicle. B B: Go to Step 7 . A: Go to Next Step
6. Check the smart door lock system operation. Register an electrical key transmitter sub-assembly. (Refer to the "immobilizer registration manual") Next
7. Check the electrical key transmitter sub-assembly (operation). Check if the entry function works properly. (Refer to OPERATION CHECK ) Criteria: The entry function works properly. NG: Replacement of the collation ECM (smart key computer assembly) OK: END (electrical key transmitter sub-assembly malfunction)

If the driver's door unlock function does not work but the entry lock function works properly, the communication between the vehicle and the electrical key transmitter sub-assembly is normal. In this case, the problem might be caused by a defect in the unlock sensor circuit between the collation ECM (smart key ECM assembly) and the front door outer handle assembly (driver's side electrical key antenna).

Scheme 155

Scheme 156

1. Check the power door lock operation. Operate the door control switch on the power window regulator master switch assembly, and check if the door locks or unlocks properly according to the switch operation you have performed. (Refer to OPERATION CHECK ) Criteria: The door lock operation is performed properly. NG: Go to "Power door lock control system" ("Symptom table"). OK: Go to Next Step
2. Read numerical values using the SSM3. Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Enter the following menu items: [Integ. unit mode] -->[Current Data Display & Save]. Based on the contents of the SSM3 display, read the [Current Data Display & Save]. MAIN BODY Tester display Measurement items / range Normal condition Notes for diagnosis [D Door Lock Pos] Driver's door unlock detection switch signal/[Lock] or [Unlock] [Lock]: The driver's door is locked. [Unlock]: The driver's door is unlocked. - Criteria: On the SSM3 display, [Lock] or [Unlock] is displayed as described in the table above. NG: Go to "Light system" (door unlock detection switch circuit). OK: Go to Next Step
3. Read numerical values using the SSM3. Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Input the following menus: [Keyless access system] -->[Collation ECM] -->[Current Data Display & Save] Based on the contents of the SSM3 display, read the [Current Data Display & Save]. ENTRY & START Tester display Measurement items / range Normal condition Notes for diagnosis [D seat unlock person sensor] Front door outer handle assembly (driver's side) (unlock sensor)/[OFF] or [ON] [OFF]: The front door outer handle assembly (driver's side) (unlock sensor) is not touched. [ON]: The front door outer handle assembly (driver's side) (unlock sensor) is touched. This item displays whether the unlock sensor is ON or OFF (even when the sensor is properly touched [ON] is displayed only momentarily). This item is displayed under [Current Data Display & Save]. When the entry unlock function does not work, use this item to check if the unlock sensor is faulty. Criteria: On the SSM3 display, [ON] or [OFF] is displayed as described in the table above. NG: Go to Step 4. OK: Replacement of the collation ECM (smart key computer assembly)
4. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - front door outer handle assembly). Disconnect the D41 and D48 collation ECM (smart key ECM assembly) connectors. Disconnect the E1 front door outer handle assembly connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D41-22 (SEN1) - E1-4 (SENS) Always 1 ohmsor less D48-11 (GND) - chassis ground Always 1 ohmsor less D41-22 (SEN1) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
5. Inspect the front door outer handle assembly (driver's door) unit. Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM assembly). Reconnect the E1 front door outer handle assembly (driver's door) connector. Using an oscilloscope, check the waveform. CRITERIA Inspection terminals Switch conditions Tool setting Specified condition D41-22 (SEN1) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are locked. The electrical key transmitter sub-assembly is not in the appropriate range from the vehicle. Driver's door unlock sensor, not touched -->touched 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) NG: Replace the front door outer handle assembly (driver's door). OK: Replacement of the collation ECM (smart key computer assembly)

If the entry unlock function does not work but the entry lock function works properly on the passenger's door, a request code is properly transmitted from the passenger's door. In this case, the problem might be caused by a defect in the touch sensor (collation ECM (smart key ECM assembly) and the front door outer handle assembly (passenger's door) (unlock sensor)).

Scheme 157

Scheme 158

1. Check the power door lock operation. Operate the door control switch on the power window regulator master switch assembly, and check if the door locks or unlocks properly according to the switch operation you have performed. (Refer to OPERATION CHECK ) Criteria: The door lock operation is performed properly. NG: Go to "Power door lock control system" ("Symptom table"). OK: Go to Next Step
2. Read numerical values using the SSM3. Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Enter the following menu items: [Integ. unit mode] -->[Current Data Display & Save]. Based on the contents of the SSM3 display, read the [Current Data Display & Save]. MAIN BODY Tester display Measurement items / range Normal condition Notes for diagnosis [P Door Lock Pos] Passenger's door unlock detection switch signal/[Lock] or [Unlock] [Lock]: The passenger's door is locked. [Unlock]: The passenger's door is unlocked. - Criteria: On the SSM3 display, [Lock] or [Unlock] is displayed as described in the table above. NG: Go to "Light system" (door unlock detection switch circuit). OK: Go to Next Step
3. Read numerical values using the SSM3. Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Input the following menus: [Keyless access system] -->[Collation ECM] -->[Current Data Display & Save] Based on the contents of the SSM3 display, read the [Current Data Display & Save]. ENTRY & START Tester display Measurement items / range Normal condition Notes for diagnosis [P seat unlock person sensor] Front door outer handle assembly (passenger's side) (unlock sensor)/[OFF] or [ON] [OFF]: The front door outer handle assembly (passenger's side) (unlock sensor) is not touched. [ON]: The front door outer handle assembly (passenger's side) (unlock sensor) is touched. This item displays whether the unlock sensor is ON or OFF (even when the sensor is properly touched [ON] is displayed only momentarily). This item is displayed under [Current Data Display & Save]. When the entry unlock function does not work, use this item to check if the unlock sensor is faulty. Criteria: On the SSM3 display, [ON] or [OFF] is displayed as described in the table above. NG: Go to Step 4. OK: Replacement of the collation ECM (smart key computer assembly)
4. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - front door outer handle assembly). Disconnect the D41 and D48 collation ECM (smart key ECM assembly) connectors. Disconnect the F5 front door outer handle assembly connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D41-23 (SEN1) - F5-4 (SENS) Always 1 ohmsor less D48-11 (GND) - chassis ground Always 1 ohmsor less D41-23 (SEN1) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
5. Inspect the front door outer handle assembly (passenger's door) unit. Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM assembly). Reconnect the F5 front door outer handle assembly (passenger's door) connector. Using an oscilloscope, check the waveform. CRITERIA Inspection terminals Conditions Tool setting Specified condition D41-23 (SEN2) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are closed. The electrical key transmitter sub-assembly is not in the appropriate range from the vehicle. Passenger's door unlock sensor, not touched -->touched 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) NG: Replace the front door outer handle assembly (passenger's door). OK: Replacement of the collation ECM (smart key computer assembly)

If the entry lock/unlock function does not work on the driver's door, it means that a request code might not be transmitted from the driver's door, or that the front door outer handle assembly (driver's side) (touch sensor) might be faulty. If the entry function works properly on other doors, the electrical key transmitter sub-assembly and the door control receiver are functioning properly. It can therefore be assumed that something is wrong with the transmission of a request code (communication between the collation ECM (smart key ECM assembly) and the front door outer handle assembly (driver's door) (driver's door electrical key antenna)), or that interference from external radio waves is present.

Scheme 159

Scheme 160

Scheme 161

1. Check the power door lock operation. Operate the door control switch on the power window regulator master switch assembly, and check if the door locks or unlocks properly according to the switch operation you have performed. (Refer to OPERATION CHECK ) Criteria: The door lock operation is performed properly. NG: Go to "Power door lock control system" ("Symptom table"). OK: Go to Next Step
2. Checking the waveform environment Move the electrical key transmitter sub-assembly towards the front door outer handle assembly and check how the entry lock and unlock operations work on the driver's door. CAUTION: If the key is within 0.2m of the door outer handle assembly, communication is not possible. NOTE: Try moving the electrical key transmitter sub-assembly closer to the front door outer handle assembly, so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by external radio waves or not. If the function works properly, it is highly likely that the problem is caused by interference from external radio waves. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation. Criteria: The entry function works properly. RESULT Result Go to The entry function does not work properly. A The entry function works properly. B B: Interference from external radio waves A: Go to Next Step
3. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - front door outer handle assembly). Disconnect the D41 collation ECM (smart key ECM assembly) connector. Remove the E1 front door outer handle assembly (driver's door) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D41-12 (CLG1) - E1-6 (ANT1) Always 1 ohmsor less D41-13 (CG1B) - E1-3 (ANT2) Always 1 ohmsor less D41-19 (POS1) - E1-5 (B) Always 1 ohmsor less D41-12 (CLG1) - chassis ground Always 10 kohms or more D41-13 (CG1B) - chassis ground Always 10 kohms or more D41-19 (POS1) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
4. Inspect the collation ECM (smart key ECM assembly) (output to the driver's side electrical key antenna). Reconnect the D41 connector of the collation ECM (smart key ECM assembly). Using an oscilloscope, check the waveform. CRITERIA Inspection terminals Conditions Tool setting Specified condition E1-6 (ANT1) - E1-3 (ANT2) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are closed. The electrical key transmitter sub-assembly is not inside the vehicle. The electrical key transmitter sub-assembly is outside the detection area (1) . All doors are locked by a wireless operation. 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) (1) For a detailed description on outside the entry function detection area, refer to "Operation check". (Refer to OPERATION CHECK ) NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
5. Replace the front door outer handle assembly (driver's door). Temporarily replace the front door outer handle assembly (driver's door) with a new one or one that functions normally. (Refer to DISASSEMBLY ) Next
6. Check the front door outer handle assembly (driver's door) (operation). Check if the entry function works properly. (Refer to OPERATION CHECK ) Criteria: The entry function works properly. NG: Replacement of the collation ECM (smart key computer assembly) Next: END (front door outer handle assembly malfunction)

If the entry lock/unlock function does not work on the passenger's door, it means that a request code might not be transmitted from the passenger's door, or that the front door outer handle assembly (passenger's side) (touch sensor) might be faulty. If the entry function works properly on other doors, the electrical key transmitter sub-assembly and the door control receiver are functioning properly. It can therefore be assumed that something is wrong with the transmission of a request code (communication between the collation ECM (smart key ECM assembly) and the front door outer handle assembly (passenger's door) (passenger's door electrical key antenna)), or that interference from external radio waves is present.

Scheme 162

Scheme 163

Scheme 164

1. Check the power door lock operation. Operate the door control switch on the power window regulator master switch assembly, and check if the door locks or unlocks properly according to the switch operation you have performed. Criteria: The door lock operation is performed properly. NG: Go to "Power door lock control system" ("Symptom table"). OK: Go to Next Step
2. Checking the waveform environment Move the electrical key transmitter sub-assembly towards the front door outer handle assembly and check how the entry lock and unlock operations work on the passenger's door. CAUTION: If the key is within 0.2 m of the door outer handle assembly, communication is not possible. NOTE: Try moving the electrical key transmitter sub-assembly closer to the front door outer handle assembly, so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by external radio waves or not. If the function works properly, it is highly likely that the problem is caused by interference from external radio waves. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation. RESULT Result Go to The entry function does not work properly. A The entry function works properly. B B: Interference from external radio waves A: Go to Next Step
3. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - front door outer handle assembly). Disconnect the D41 collation ECM (smart key ECM assembly) connector. Remove the F5 front door outer handle assembly (passenger's door) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D41-11 (CLG2) - F5-6 (ANT1) Always 1 ohmsor less D41-10 (CG2B) - F5-3 (ANT2) Always 1 ohmsor less D41-21 (POS2) - F5-5 (B) Always 1 ohmsor less D41-11 (CLG2) - chassis ground Always 10 kohms or more D41-10 (CG2B) - chassis ground Always 10 kohms or more D41-21 (POS2) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
4. Inspect the collation ECM (smart key ECM assembly) (output to the passenger's side electrical key antenna). Reconnect the D41 connector of the collation ECM (smart key ECM assembly). Using an oscilloscope, check the waveform. CRITERIA Inspection terminals Conditions Tool setting Specified condition F5-6 (ANT1) - F5-3 (ANT2) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are closed. The electrical key transmitter sub-assembly is not inside the vehicle. The electrical key transmitter sub-assembly is outside the detection area (1) . All doors are locked by a wireless operation. 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) (1) For a detailed description on outside the entry function detection area, refer to "Operation check". (Refer to OPERATION CHECK ) NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
5. Replace the front door outer handle assembly (passenger's door). Temporarily replace the front door outer handle assembly (passenger's door) with a new one or one that functions normally. Next
6. Check the front door outer handle assembly (passenger's door) (operation). Check if the entry function works properly. (Refer to OPERATION CHECK ) Criteria: The entry function works properly. NG: Replacement of the collation ECM (smart key computer assembly) OK: END (front door outer handle assembly malfunction)

If the driver's door lock function does not work but the entry unlock function works properly, the communication between the vehicle and the electrical key transmitter sub-assembly is normal. In this case, the problem might be caused by a defect in the lock sensor circuit between the collation ECM (smart key ECM assembly) and the front door outer handle assembly (passenger's side electrical key antenna).

Scheme 165

Scheme 166

1. Check the power door lock operation. Operate the door control switch on the master switch assembly, and check if the door locks or unlocks properly according to the switch operation you have performed. Criteria: The door lock operation is performed properly. NG: Go to "Power door lock control system" ("Symptom table"). OK: Go to Next Step
2. Read numerical values using the SSM3. Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Input the following menus: [Keyless access system] -->[Collation ECM] -->[Current Data Display & Save] Based on the contents of the SSM3 display, read the [Current Data Display & Save]. ENTRY & START Tester display Measurement items / range Normal condition Notes for diagnosis [D seat lock person sensor] Front door outer handle assembly (driver's side) (lock sensor)/[OFF] or [ON] [OFF]: The front door outer handle assembly (driver's side) (lock sensor) is not touched. [ON]: The front door outer handle assembly (driver's side) (lock sensor) is touched. This item displays whether the lock sensor is ON or OFF (even when the sensor is properly touched [ON] is displayed only momentarily). This item is displayed under [Current Data Display & Save]. When the entry lock function does not work, use this item to check if the lock sensor is faulty. Criteria: On the SSM3 display, [ON] or [OFF] is displayed as described in the table above. NG: Go to Step 3. OK: Replacement of the collation ECM (smart key computer assembly)
3. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - front door outer handle assembly). Disconnect the D41 and D48 collation ECM (smart key ECM assembly) connectors. Disconnect the E1 front door outer handle assembly connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D41-20 (TSW1) - E1-1 (TRG+) Always 1 ohmsor less D48-11 (GND) - chassis ground Always 1 ohmsor less D41-20 (TSW1) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
4. Inspect the front door outer handle assembly (driver's door) unit. Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM assembly). Reconnect the E1 front door outer handle assembly (driver's door) connector. Using an oscilloscope, check the waveform. CRITERIA Inspection terminals Switch conditions Tool setting Specified condition D41-20 (TSW1) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are closed. Driver's door lock sensor, not touched -->touched 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) NG: Replace the front door outer handle assembly (driver's door). OK: Replacement of the collation ECM (smart key computer assembly)

If the passenger's door lock function does not work but the entry unlock function works properly, the communication between the vehicle and the electrical key transmitter sub-assembly is normal. In this case, the problem might be caused by a defect in the lock sensor circuit between the collation ECM (smart key ECM assembly) and the front door outer handle assembly (passenger's side electrical key antenna).

Scheme 167

Scheme 168

1. Check the power door lock operation. Operate the door control switch on the master switch assembly, and check if the door locks or unlocks properly according to the switch operation you have performed. Criteria: The door lock operation is performed properly. NG: Go to "Power door lock control system" ("Symptom table"). OK: Go to Next Step
2. Read numerical values using the SSM3. Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Input the following menus: [Keyless access system] -->[Collation ECM] -->[Current Data Display & Save] Based on the contents of the SSM3 display, read the [Current Data Display & Save]. ENTRY & START Tester display Measurement items / range Normal condition Notes for diagnosis [P seat lock person sensor] Front door outer handle assembly (passenger's side) (lock sensor)/[OFF] or [ON] [OFF]: The front door outer handle assembly (passenger's side) (lock sensor) is not touched. [ON]: The front door outer handle assembly (passenger's side) (lock sensor) is touched. This item displays whether the lock sensor is ON or OFF (even when the sensor is properly touched [ON] is displayed only momentarily). This item is displayed under [Current Data Display & Save]. When the entry lock function does not work, use this item to check if the lock sensor is faulty. Criteria: On the SSM3 display, [ON] or [OFF] is displayed as described in the table above. NG: Go to Step 3. OK: Replacement of the collation ECM (smart key computer assembly)
3. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - front door outer handle assembly). Disconnect the D41 and D48 collation ECM (smart key ECM assembly) connectors. Remove the F5 front door outer handle assembly (driver's door) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D41-8 (TSW2) - F5-1 (TRG+) Always 1 ohmsor less D48-11 (GND) - chassis ground Always 1 ohmsor less D41-8 (TSW2) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
4. Inspect the front door outer handle assembly (passenger's door) unit. Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM assembly). Reconnect the F5 front door outer handle assembly (driver's door) connector. Using an oscilloscope, check the waveform. CRITERIA Inspection terminals Switch conditions Tool setting Specified condition D41-8 (TSW2) - D48-11 (GND) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is outside the vehicle. All doors are closed. Passenger's door lock sensor, not touched -->touched 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) NG: Replace the front door outer handle assembly (passenger's door). OK: Replacement of the collation ECM (smart key computer assembly)

If the code check operation cannot be performed inside the vehicle, communication between the vehicle (indoor electrical key antenna assembly (front floor or rear floor)) and the electrical key transmitter sub-assembly might be faulty, or the collation ECM (smart key ECM assembly) might be faulty. When the electrical key transmitter sub-assembly is located inside the vehicle, the key ID code transmitted from the electrical key transmitter sub-assembly is matched against the one stored in the collation ECM (smart key ECM assembly). If this operation cannot be performed or if the code does not match, the engine switch does not turn ON (IG) and the engine cannot be started.

If the electrical key transmitter sub-assembly is located inside the vehicle with doors unlocked, the collation ECM (smart key ECM assembly) sends out radio waves to detect the electrical key transmitter sub-assembly, and the indoor electrical key antenna assembly becomes enabled. If the presence of the electrical key transmitter sub-assembly inside the detection area is confirmed, the collation ECM (smart key ECM assembly) responds to the key ID code. This information is received by the door control receiver, which is then sent to the collation ECM (smart key ECM assembly).

Scheme 169

Note. Ensure that the entry cancel function (one of the customize setting available for the entry & start system) is not enabled. (Refer to CUSTOMIZE PARAMETERS )

Scheme 170

Scheme 171

Scheme 172

Scheme 173

Scheme 174

Scheme 175

Scheme 176

1. Check the entry & start system (entry function). Check if the entry lock/unlock function works properly. (Refer to OPERATION CHECK ) Criteria: The entry lock/unlock function works properly. NG: Go to "Symptom table" (entry & start system (entry function)) (refer to NEITHER SMART LOCK NOR SMART UNLOCK OPERATION WORKS ON ANY OF THE DOORS (WIRELESS FUNCTION DOES NOT WORK EITHER). ). OK: Go to Next Step
2. Check the entry & start system (start function). Remove the battery from the electrical key transmitter sub-assembly. (Refer to TRANSMITTER BATTERY (WITH SMART ENTRY) ) Step on the brake pedal *1 or the clutch pedal *2, and touch the logo side of the electrical key transmitter sub-assembly to the engine switch. *1: With automatic transmission *2: for manual transmission Turn to IG ON, and check if the engine starts when you operate the engine switch. NOTE: If the presence of the electrical key transmitter sub-assembly inside the detection area cannot be confirmed, remove the transmitter battery from the electrical key transmitter sub-assembly and then place the electrical key transmitter sub-assembly over the engine switch to check if the engine starts. If the engine does not start during this inspection procedure, the collation ECM (smart key ECM assembly), steering lock actuator assembly (steering lock ECM), or the ID code box*1 might be faulty. *1: The ID code box is included. Criteria: The engine starts. NG: Go to "Entry & start system" (start function) (refer to HOW TO PROCEED WITH TROUBLESHOOTING ). OK: Go to Next Step
3. Checking the waveform environment Insert the transmitter battery into the electrical key transmitter sub-assembly. (Refer to TRANSMITTER BATTERY (WITH SMART ENTRY) ) Move the electrical key transmitter sub-assembly toward the indoor electrical key antenna assembly no. 1 (front floor) and check if the engine starts. CAUTION: If the key is within 0.2 m (0.656 feet) of the indoor electrical key antenna assembly no. 1 (front floor), communication may not be possible. Move the electrical key transmitter sub-assembly toward the indoor electrical key antenna assembly no. 2 (rear floor) and check if the engine starts. If a setting other than [All] is specified for [Ignition Available Area] by customization, the engine does not start. Before proceeding with this inspection procedure, check that [All] is selected for this item. (Refer to CUSTOMIZE PARAMETERS ) CAUTION: If the key is within 0.2 m (.0.656 feet) of the indoor electrical key antenna assembly no. 2 (rear floor), communication is not possible. NOTE: Try moving the electrical key transmitter sub-assembly closer to the door control receiver, so that it is less exposed to external radio waves. In this way, you can identify if the problem is caused by external radio waves or not. If the failure occurs in certain locations or during certain periods of time, it may be due to interference from external radio waves. In addition, the vehicle can also be affected by external radio waves generated by components installed by a dealer. If such components are found, remove them before inspecting the vehicle. Being close to a broadcast antenna, a large video display, a wireless garage door opener system, a wireless security camera, or a home security system makes the vehicle susceptible to interference from external radio waves. If this is the case, move the vehicle to another location to check if the problem improves. If a tool for checking radio waves such as a signal-strength meter is available, take measurements in the LF band (which is used by the vehicle antenna to create a detection area) and the RF band (which is used by the electrical key transmitter sub-assembly for signal transmission) in the vicinity of the vehicle to check where the radio waves might be present. Criteria: The engine starts. NG: Go to Step 4. OK: Interference from external radio waves
4. Perform the keyless access system check. Perform keyless access system check for the following antennas. (Refer to OPERATION CHECK ) Check the indoor electrical key antenna assembly no. 1 (front floor): Check if the wireless door lock buzzer beeps when the electrical key transmitter sub-assembly is located at the inspection points. Check the indoor electrical key antenna assembly no. 2 (rear floor). Check if the wireless door lock buzzer beeps when the electrical key transmitter sub-assembly is located at the inspection points. NOTE: If the buzzer beeps, it means that the indoor transmitter is functioning properly. You can identify which indoor electrical key antenna assembly (front floor or rear floor) is functioning properly by checking if the buzzer beeps when the key is near the respective antennas. If the buzzer does not go off when the key is near the indoor electrical key antenna assembly, the circuit inside the collation ECM (smart key ECM assembly) might be faulty. RESULT Result Go to Front side operation failure A Rear floor operation failure B Front and rear operation check results are OK. C B: Go to Step 9 . C: Replacement of the collation ECM (smart key computer assembly) A: Go to Next Step
5. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - indoor electrical key antenna no. 1 (front floor)). Disconnect the D41 collation ECM (smart key ECM assembly) connector. Disconnect the D26 indoor electrical key antenna assembly no. 1 (front floor) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D41-3 (CLG5) - D26-1 (ANTE5) Always 1 ohmsor less D41-2 (CG5B) - D26-3 (CLGB) Always 1 ohmsor less D41-3 (CLG5) - chassis ground Always 10 kohms or more D41-2 (CG5B) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
6. Inspect the collation ECM (smart key ECM assembly) (output to the electrical key antenna assembly no. 1 (front floor)). Reconnect the D41 connector of the collation ECM (smart key ECM assembly). Using an oscilloscope, check the waveform. CRITERIA Inspection terminals Conditions Tool setting Specified condition D26-1 (ANTE5) - D26-3 (CLGB) Procedure: The engine switch is OFF. A door is open. A door is closed. 30 seconds elapses. The electrical key transmitter sub-assembly is not inside the vehicle. 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
7. Replace the indoor electrical key antenna assembly no. 1 (front floor). Temporarily replace the indoor electrical key antenna assembly no. 1 (front floor) with a new one or one that functions normally. Next
8. Perform the keyless access system check. Perform keyless access system check for the following antennas. (Refer to OPERATION CHECK ) Check the indoor electrical key antenna assembly no. 1 (front floor): Check if the wireless door lock buzzer beeps when the electrical key transmitter sub-assembly is located at the inspection points. Criteria: The wireless door lock buzzer beeps. NG: Replacement of the collation ECM (smart key computer assembly) OK: END (indoor electrical key antenna assembly no. 1 malfunction)
9. Check the harnesses and connectors (collation ECM (smart key ECM assembly) - indoor electrical key antenna assembly no. 2). Disconnect the D40 collation ECM (smart key ECM assembly) connector. Disconnect the H15 indoor electrical key antenna assembly no. 2 (rear floor) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D40-11 (CLG6) - H15-1 (ANTE6) Always 1 ohmsor less D40-10 (CG6B) - H15-3 (CLGB) Always 1 ohmsor less D40-11 (CLG6) - chassis ground Always 10 kohms or more D40-10 (CG6B) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
10. Inspect the collation ECM (smart key ECM assembly) (output to the indoor electrical key antenna no. 2). Reconnect the D40 collation ECM (smart key ECM assembly) connector. Using an oscilloscope, check the waveform. CRITERIA Inspection terminals Conditions Tool setting Specified condition H15-1 (ANTE6) - H15-3 (CLGB) Procedure: The engine switch is OFF. A door is open. A door is closed. 30 seconds elapses. The electrical key transmitter sub-assembly is not inside the vehicle. 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
11. Replace the indoor electrical key antenna assembly no. 2 (rear floor). Temporarily replace the indoor electrical key antenna assembly no. 2 (rear floor) with a new one or one that functions normally. Next
12. Perform the keyless access system check. Perform keyless access system check for the following antennas. (Refer to OPERATION CHECK ) Check the indoor electrical key antenna assembly no. 2 (rear floor). Check if the wireless door lock buzzer beeps when the electrical key transmitter sub-assembly is located at the inspection points. Criteria: The wireless door lock buzzer beeps. NG: Replacement of the collation ECM (smart key computer assembly) OK: END (indoor electrical key antenna assembly no. 2 malfunction)

Scheme 177

Scheme 178

Scheme 179

1. Read numerical values using the SSM3. Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Enter the following menu items: [Keyless access system check] -->[Collation ECM] -->[Unit customizing]. Based on the contents of the SSM3 display, read the [Current Data Display & Save]. ENTRY & START Tester display Measurement items / range Normal condition Notes for diagnosis [Trunk Open Mode] Trunk opening switch assembly/[OFF] or [ON] Customization status is displayed. - RESULT Result Go to The entry trunk open mode is ON. A The entry trunk open mode is OFF. B B: Specify the customize setting (go to "customize function") (refer to CUSTOMIZE PARAMETERS ). A: Go to Next Step
2. Read numerical values using the SSM3. Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Enter the following menu items: [Keyless access system check] -->[Collation ECM] -->[Unit customizing]. Based on the contents of the SSM3 display, read the [Current Data Display & Save]. ENTRY & START Tester display Measurement items / range Normal condition Notes for diagnosis [Tr/B-Door Unlock SW] Trunk opening switch assembly/[OFF] or [ON] [ON]: The trunk opening switch assembly is pressed. [OFF]: The trunk door opening switch assembly is not pressed. - Criteria: The monitor changes as you operate the trunk opening switch assembly. NG: Go to Step 8 . OK: Go to Next Step
3. Using the SSM3, execute [System Operation Check Mode]. Connect the SSM3 to the DLC3. Turn the ignition switch to ON. Turn on the SSM3. Enter the following menu items: [Integ. unit mode] -->[Work Support] -->[System Operation Check Mode]. Based on the contents of the SSM3 display, read the [Current Data Display & Save]. MAIN BODY Tester display Tested parts Control range Notes for diagnosis [Trunk and Back-Door Open] Operate the trunk lock motor. ON/OFF - Criteria: The trunk opens. NG: Go to Step 10 . OK: Go to Next Step
4. Checking the waveform environment Move the electrical key transmitter sub-assembly toward the electrical key antenna (trunk exterior antenna) and check the entry trunk open function. CAUTION: If the electrical key transmitter sub-assembly is within 0.2m of the rear bumper, communication is not possible. NOTE: Press the switch located outside the trunk opener, holding the electrical key transmitter sub-assembly approximately 1 m above ground and approximately 0.3 m away from the vehicle, as shown in the figure. Try moving the electrical key transmitter sub-assembly closer to the electrical key antenna (trunk exterior antenna), so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by external radio waves or not. If the operation check reveals a normal result, it is highly likely that the problem is caused by the effect of electromagnetic interference. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation. Criteria: The entry function works properly. NG: Go to Step 5. OK: Interference from external radio waves
5. Perform the keyless access system check. Perform keyless access system check for the following antennas. (Refer to OPERATION CHECK ) Check the indoor electrical key antenna assembly no. 2 (rear floor). Hold the electrical key transmitter sub-assembly at the same level as the upper surface of the rear bumper, positioning it at the center of the rear end of the vehicle. Check if the wireless door lock buzzer beeps. NOTE: Hold the electrical key transmitter sub-assembly at the same level as the upper surface of the rear bumper, positioning it at the center of the rear end of the vehicle (0.7 - 1.0 m (2.30 - 3.28 feet)). Check that the electrical key transmitter sub-assembly is facing in the same direction as shown in the figure. If the buzzer beeps, it means that the transmitter located outside the trunk is functioning properly. Criteria: The wireless door lock buzzer beeps. NG: Go to Step 6. OK: Replacement of the collation ECM (smart key computer assembly)
6. Check the harnesses and connectors (collation ECM - electrical key antenna). Disconnect the D40 collation ECM (smart key ECM assembly) connector. Disconnect the H3 electrical key antenna (trunk exterior antenna) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D40-1 (CG8B) - H3-2 (ANTE2) Always 1 ohmsor less D40-2 (CLG8) - H3-1 (ANTE1) Always 1 ohmsor less D40-1 (CG8B) - chassis ground Always 10 kohms or more D40-2 (CLG8) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
7. Inspect the electrical key antenna (trunk exterior antenna) unit. Remove the electrical key antenna (trunk exterior antenna). Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value 1 (ANTE1) - 2 (ANTE2) Always 1 ohmsor less NG: Replace the electrical key antenna (trunk exterior antenna). OK: Replacement of the collation ECM (smart key computer assembly)
8. Inspect the trunk opening switch assembly unit. Remove the trunk opening switch assembly. (Refer to TRUNK OPENING SWITCH assembly ) Inspect the trunk opening switch assembly. (Refer to INSTALLATION ) NG: Replacement of the trunk opening switch assembly OK: Go to Next Step
9. Check the harnesses and connectors (collation ECM - trunk opening switch assembly). Disconnect the D40 collation ECM (smart key ECM assembly) connector. Remove the J2 trunk opening switch assembly connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D40-27 (TSW5) - J2-2 Always 1 ohmsor less J2-1 - chassis ground Always 1 ohmsor less D40-27 (TSW5) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Replacement of the collation ECM (smart key computer assembly)
10. Inspect the trunk lock assembly unit. Remove the trunk lock assembly. (Refer to TRUNK PANEL LOCK assembly ) Inspect the trunk lock assembly. (Refer to UNIT INSPECTION ) NG: Replacement of the trunk lock assembly OK: Go to Next Step
11. Check the harnesses and connectors (trunk lock - instrument panel junction block). Disconnect the 3B and 3D instrument panel junction block assembly connectors. Disconnect the J3 trunk lock assembly connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value 3B-6 - J3-1 Always 1 ohmsor less 3D-26 -J3-3 Always 1 ohmsor less J3-2 - chassis ground Always 1 ohmsor less 3B-6 - chassis ground Always 10 kohms or more 3D-26 - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
12. Inspect the instrument panel junction block assembly unit. Remove the instrument panel junction block assembly. Remove the main body ECM (multiplex network body ECM) from the instrument panel junction block assembly. Measure the resistance according to the following table. RESISTANCE Inspection terminals Conditions Specified condition 3B-6 - MB-4 Always 1 ohmsor less 3D-26 - MB-12 Always 1 ohmsor less NG: Replacement of the instrument panel junction block assembly OK: Replace the main body ECM (multiplex network body ECM).

If the entry trunk compartment lock-in prevention function does not work, communication between the indoor electrical key antenna assembly no. 3 (trunk interior antenna) and the electrical key transmitter sub-assembly might be faulty, interference from external radio waves might be present, or the collation ECM (smart key ECM assembly) might be faulty.

Scheme 180

Scheme 181

Scheme 182

Scheme 183

1. Check the entry function (entry trunk open function). Check if the entry trunk open function works properly. (Refer to OPERATION CHECK ) RESULT Result Go to The entry trunk open function works properly. A The entry trunk open function does not work properly. B B: Proceed to check other problems ("Symptom table") (refer to PROBLEM SYMPTOMS TABLE ). A: Go to Next Step
2. Checking the waveform environment Move the electrical key transmitter sub-assembly toward the indoor electrical key antenna assembly no. 3 (trunk interior antenna) and check if the entry trunk compartment lock-in prevention function works. CAUTION: If the electrical key transmitter sub-assembly is within 0.2 m (0.656 feet) of the indoor electrical key antenna assembly no. 3 (rear floor), communication is not possible. NOTE: Try moving the electrical key transmitter sub-assembly closer to the indoor electrical key antenna assembly no. 3 (trunk interior antenna), so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by electromagnetic interference. If the operation check reveals a normal result, it is highly likely that the problem is caused by the effect of electromagnetic interference. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation. Criteria: The entry function works properly. NG: Go to Step 3. OK: Interference from external radio waves
3. Perform the keyless access system check. Perform keyless access system check for the following antennas. (Refer to OPERATION CHECK ) Check if the wireless door lock buzzer beeps when the electrical key transmitter sub-assembly is located in the trunk. NOTE: Place the key in the trunk. If the buzzer beeps, it means that the indoor electrical key antenna assembly no. 3 (located inside the trunk) is functioning properly. Criteria: The wireless door lock buzzer beeps. NG: Go to Step 4. OK: Replacement of the collation ECM (smart key computer assembly)
4. Check the harnesses and connectors (collation ECM - indoor electrical key antenna no. 3). Disconnect the D40 collation ECM (smart key ECM assembly) connector. Disconnect the H9 indoor electrical key antenna assembly no. 3 (trunk interior antenna) connector. Measure the resistance according to the following table. RESISTANCE Inspection terminals Inspection conditions Standard value D40-9 (CLG7) - H9-1 (ANTE7) Always 1 ohmsor less D40-8 (CG7B) - H9-3 (CLGB) Always 1 ohmsor less D40-9 (CLG7) - chassis ground Always 10 kohms or more D40-8 (CG7B) - chassis ground Always 10 kohms or more NG: Repair or replace the harnesses or connectors. OK: Go to Next Step
5. Check the collation ECM (smart key ECM assembly). Connect the D40 collation ECM (smart key ECM assembly) connector. Disconnect the H9 indoor electrical key antenna assembly no. 3 (trunk interior antenna) connector. Measure the voltage according to the following table. CRITERIA Inspection terminals Switch conditions Tool setting Specified condition H9-1 (CLG7) - H9-3 (CLGB) Procedure: The engine switch is OFF. The electrical key transmitter sub-assembly is not inside the vehicle. All doors are closed. Driver's door lock sensor, not touched -->touched 2 V/DIV., 500 ms/DIV. Pulse generation (refer to the waveform) NG: Replacement of the collation ECM (smart key computer assembly) OK: Go to Next Step
6. Replacement of the indoor electrical key antenna assembly no. 3 (trunk interior antenna) Replace the indoor electrical key antenna assembly no. 3 (trunk interior antenna). (Refer to ELECTRICAL OSCILLATOR KEY (FOR THE TRUNK ROOM) ) Next
7. Check the indoor electrical key antenna assembly no. 3 (trunk interior antenna). Check if the entry trunk lock-in prevention function works properly. Criteria: The trunk lock-in prevention function works properly. NG: Replacement of the collation ECM (smart key computer assembly) OK: END (indoor electrical key antenna assembly no. 3 malfunction)

The entry & start system (entry function) provides various indoor warnings by setting off a buzzer via the combination meter assembly. When the specific conditions for each waning are met, the collation ECM (smart key ECM assembly) sends a buzzer drive request signal to the combination meter assembly via the CAN communication to beep the buzzer.

1. Check the entry door lock operation. Check if the entry function works properly. (Refer to OPERATION CHECK ) Criteria: The entry function works properly. NG: Go to "Symptom table" (refer to PROBLEM SYMPTOMS TABLE ). OK: Go to "Meter & gauge system" ("Symptom table").