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HOMESERVICE MANUALSTOYOTA2008CAMRY XLE, 2.4 EREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSDOOR LOCK (EXCEPT HYBRID)SMART KEY SYSTEMPROBLEM SYMPTOMS TABLE
2008 Toyota Camry XLE, 2.4 E

Problem Symptoms Table

2008 Toyota Camry XLE, 2.4 ESECTION Problem Symptoms Table

HINT:

  • Use the table below to help determine the cause of the problem symptoms. The potential causes of the symptoms are listed in order of probability in the "Suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.

SMART KEY SYSTEM: 

SMART KEY SYSTEM

Symptom Suspected Area See
Entry lock/unlock does not operate. 1. Check for DTCs in the smart key system (Starting function). HORN CIRCUIT
2. Refer to PROBLEM SYMPTOMS TABLE of the power door lock control system ("All doors cannot be locked/unlocked simultaneously by neither door control switch nor door key cylinder"). PROBLEM SYMPTOMS TABLE 
3. Courtesy light switch circuit DOOR COURTESY SWITCH CIRCUIT
4. Lock position switch circuit -
- Driver door DRIVER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT 
- Front passenger door FRONT PASSENGER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT 
- Rear passenger door LH REAR DOOR UNLOCK DETECTION SWITCH LH CIRCUIT 
- Rear passenger door RH REAR DOOR UNLOCK DETECTION SWITCH RH CIRCUIT 
5. Entry lock switch circuit ENTRY LOCK SWITCH CIRCUIT 
6. Touch sensor circuit TOUCH SENSOR CIRCUIT 
7. Antenna circuit ANTENNA CIRCUIT 
8. Refer to "code matching inside the cabin cannot be performed". -
9. Door oscillator circuit DOOR OSCILLATOR CIRCUIT 
10. Replace the main body ECU. -
11. Replace the certification ECU. -
Luggage compartment does not open (when the electrical key is outside the vehicle). 1. Check for DTCs in the smart key system (Starting function). DTC CHECK / CLEAR
2. Check if any function is cancelled due to customization. CUSTOMIZE PARAMETERS 
3. Refer to PROBLEM SYMPTOM TABLE of the power door lock control system ("Luggage compartment door opener does not operate"). PROBLEM SYMPTOMS TABLE 
4. Operate the luggage compartment opener switch on the electrical key to check the wireless function. OPERATION CHECK 
5. Refer to PROBLEM SYMPTOMS TABLE of the wireless door lock control system of the wireless door lock control system ("The wireless door lock control system does not operate"). PROBLEM SYMPTOMS TABLE 
6. Check operation of the cabin oscillator in active test. DTC CHECK / CLEAR 
7. Luggage oscillator circuit LUGGAGE OSCILLATOR CIRCUIT 
8. Luggage compartment opener switch circuit LUGGAGE COMPARTMENT DOOR OPEN SWITCH CIRCUIT 
9. Replace the main body ECU. -
10. Replace the certification ECU. -
All entry function does not operate. 1. Registration of the key. HOW TO PROCEED WITH TROUBLESHOOTING
2. Certification ECU power source circuit CERTIFICATION ECU POWER SOURCE CIRCUIT 
3. Replace certification ECU. -
Function to prevent electrical key confinement in the luggage compartment does not operate. (The luggage compartment does not open.) 1. Check for DTCs in the smart key system (Starting function). DTC CHECK / CLEAR
2. Power door lock control system PROBLEM SYMPTOMS TABLE 
3. Courtesy light switch circuit DOOR COURTESY SWITCH CIRCUIT
4. Lock position switch circuit -
- Driver door DRIVER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT 
- Front passenger door FRONT PASSENGER SIDE DOOR UNLOCK DETECTION SWITCH CIRCUIT 
- Rear passenger door LH REAR DOOR LOCK MOTOR CIRCUIT 
- Rear passenger door RH REAR DOOR UNLOCK DETECTION SWITCH RH CIRCUIT 
5. Check if any function is not cancelled due to customization. CUSTOMIZE PARAMETERS 
6. Operate the LOCK/UNLOCK switch on the key to check the wireless function. OPERATION CHECK 
7. Refer to PROBLEM SYMPTOMS TABLE of the wireless door lock control system ("The wireless door lock control system does not operate"). PROBLEM SYMPTOMS TABLE 
8. Check operation of the cabin oscillator in active test. DTC CHECK / CLEAR 
9. Luggage oscillator circuit LUGGAGE OSCILLATOR CIRCUIT 
10. Replace the main body ECU. -
11. Replace the certification ECU. -
Function to prevent electrical key confinement in the luggage compartment does not operate. (The alarm does not sound.) 1. Check if the function to prevent electrical key confinement in the luggage compartment operates. DIAGNOSTIC TROUBLE CODE CHART 
2. Check if answer back is performed when the wireless door lock is operated. CUSTOMIZE PARAMETERS 
3. Replace the certification ECU. -
The outside alarm of the answer back and entry systems does not sound. 1. Check if the function to prevent electrical key confinement in the luggage compartment operates. DIAGNOSTIC TROUBLE CODE CHART 
2. Check that "WIRLS BUZZ" and "HAZARD" in the DATA LIST of the main body ECU are YES. (If it is NO, go to wireless door lock system.) DTC CHECK / CLEAR 
3. Wireless door lock tuner circuit (DTC B1242) DTC B1242 WIRELESS DOOR LOCK TUNER CIRCUIT MALFUNCTION 
4. Replace the certification ECU. -
The inside alarm of the entry system does not sound. 1. Operate the LOCK/UNLOCK switch on the electrical key to check the wireless function. OPERATION CHECK 
2. Refer to PROBLEM SYMPTOMS TABLE of the wireless door lock control system ("Wireless door lock function"). PROBLEM SYMPTOMS TABLE 
3. Check if the electrical key reminder buzzer sounds. DIAGNOSTIC TROUBLE CODE CHART 
4. Replace the certification ECU. -
ID code matching inside the cabin cannot be performed. 1. Check if any function is cancelled due to customization. CUSTOMIZE PARAMETERS 
2. Operate the LOCK/UNLOCK switch on the key to check the wireless function. OPERATION CHECK 
3. Refer to PROBLEM SYMPTOMS TABLE of the wireless door lock control system ("The wireless door lock control system does not operate"). PROBLEM SYMPTOMS TABLE 
4. Check the cabin oscillator operation in the active test. DTC CHECK / CLEAR 
5. Room oscillator circuit ROOM OSCILLATOR CIRCUIT 
6. Luggage oscillator circuit LUGGAGE OSCILLATOR CIRCUIT 
7. Replace the certification ECU. -
ID code matching outside the cabin cannot be performed. 1. Check if any function is cancelled due to customization. CUSTOMIZE PARAMETERS 
2. Operate the LOCK/UNLOCK switch on the electrical key to check the wireless function. OPERATION CHECK 
3. Refer to PROBLEM SYMPTOMS TABLE of the wireless door lock control system ("The wireless door lock control system does not operate"). PROBLEM SYMPTOMS TABLE 
4. Check operation of each door oscillator in active test. DTC CHECK / CLEAR 
5. Door oscillator circuit DOOR OSCILLATOR CIRCUIT 
Key reminder buzzer does not sound. 1. Perform ACTIVE TEST for the combination meter. DATA LIST / ACTIVE TEST
2. Check "D DOR CTY SW" in the DATA LIST of the power door lock control system. DATA LIST / ACTIVE TEST 
3. Check the key reminder buzzer when the engine switch is on (ACC) and the drivers door is opened. -
4. Check if the steering wheel is locked when all power supplies are OFF and the drivers door is opened. -
5. Refer to PROBLEM SYMPTOMS TABLE of the steering lock system ("Steering wheel cannot be locked"). PROBLEM SYMPTOMS TABLE
6. Check that the "LCK BAR STUCK" item in the DATA LIST of the certification ECU displays OK. DIAGNOSIS SYSTEM
7. Replace the steering lock ECU. -
8. Replace the certification ECU. -
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.