NO.2 ALL ON-BOARD DIAGNOSTIC FUNCTIONS INOPERATIVE [KEYLESS ENTRY SYSTEM]
id0903d2800700
Possible Causes
Diagnostic Procedure
|
Step |
Inspection |
Action |
|
|---|---|---|---|
|
1
|
Does the on-board diagnosis function operate?
|
Yes
|
Go to the next step.
|
|
No
|
Perform symptom troubleshooting No.1
|
||
|
2
|
Can any operation be performed using the transmitter?
|
Yes
|
Replace the transmitter, then go to Step 24.
|
|
No
|
Go to the next step.
|
||
|
3
|
Did the customer operate the transmitter within the operation range (2.5 m {8.2 ft} from the vehicle)?
|
Yes
|
Go to the next step.
|
|
No
|
System is normal. (Explain to the customer to operate the transmitter within the operation range.)
|
||
|
4
|
Did the customer operate at a place where extrinsic noise is received such as a TV tower, electric power station, or a broadcast station.
|
Yes
|
System is normal. (Explain to the customer to operate the transmitter away from extrinsic noise.)
|
|
No
|
Go to the next step.
|
||
|
5
|
Did the customer operate the transmitter with the key inserted in the ignition key cylinder?
|
Yes
|
System is normal. (Explain to the customer that the system does not operate due to the cancel function with the key in the ignition key cylinder.)
|
|
No
|
Go to the next step.
|
||
|
6
|
Has the customer ever updated the transmitter ID number before?
|
Yes
|
Go to the next step.
|
|
No
|
Go to Step 9.
|
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|
7
|
Did the malfunction occur after the ID number updating?
|
Yes
|
Go to the next step.
|
|
No
|
Go to Step 9.
|
||
|
8
|
Does the malfunction occur only when the transmitter which had been used before the ID number updating is used?
|
Yes
|
Update the ID number of the transmitter which cause the malfunction, then go to Step 24.
|
|
No
|
Go to the next step.
|
||
|
9
|
Did the malfunction occur after any non-standard equipment (any control unit with built-in micro computer such as radio set, mobile telephone, and TV) was installed?
|
Yes
|
Go to the next step.
|
|
No
|
Go to Step 11.
|
||
|
10
|
Turn the ignition switch to the LOCK position.
Disconnect the negative battery cable.
Was the malfunction corrected when the connector of the equipment was disconnected?
|
Yes
|
System is normal. (Explain to the customer that noise from the equipment affected the operation.)
|
|
No
|
Go to the next step.
|
||
|
11
|
Is there repair record of the customer's keyless entry system?
|
Yes
|
Go to the next step.
|
|
No
|
Go to Step 14.
|
||
|
12
|
Does the malfunction occur after the repair?
|
Yes
|
Go to the next step.
|
|
No
|
Go to Step 14.
|
||
|
13
|
Connect the negative battery cable.
Is the malfunction corrected when the ID numbers for all the customer's transmitters are updated?
|
Yes
|
System is normal. (Explain to the customer that the malfunction occurred because all the transmitter ID numbers were not updated even though the body control module or a transmitter was replaced in the previous servicing.)
|
|
No
|
Go to the next step.
|
||
|
14
|
Is lock/unlock possible only near the keyless receivers when the transmitter is operated?
|
Yes
|
Go to the next step.
|
|
No
|
Go to Step 16.
|
||
|
15
|
Verify the keyless and start system operation using another normal battery.
Does the keyless system operate normally?
|
Yes
|
Replace the battery, then go to Step 26.
|
|
No
|
Go to the next step.
|
||
|
16
|
Visually inspect the transmitter battery.
Are the following correct?
• Battery direction (polarity)
• Battery type
|
Yes
|
Go to the next step.
|
|
No
|
Properly install the battery or replace the battery with a specified one (CR1620), then go to Step 26
|
||
|
17
|
Visually inspect the transmitter.
• Is there any rust on the battery terminals (+), (-)?
• Is there any poor contact between the battery terminals and the battery when the battery is inserted?
|
Yes
|
Replace the transmitter or repair the battery terminals, then go to Step 23.
|
|
No
|
Go to the next step.
|
||
|
18
|
Inspect the battery.
Is it normal?
|
Yes
|
Go to Step 20.
|
|
No
|
Go to the next step.
|
||
|
19
|
Verify the keyless and start system operation using another normal battery.
Does the keyless system operate normally?
|
Yes
|
Replace the battery, then go to Step 26.
|
|
No
|
Replace the transmitter, then go to Step 26.
|
||
|
20
|
Inspect the keyless receiver installation condition.
Is the bracket installed securely?
|
Yes
|
Go to the next step.
|
|
No
|
Install the bracket securely, then go to the next step.
|
||
|
21
|
Perform ID number updating using another normal transmitter.
After the updating, does the keyless entry system operate normally?
|
Yes
|
Replace the transmitter, then go to Step 26.
|
|
No
|
Go to the next step.
|
||
|
22
|
Inspect the keyless receiver.
• Is the keyless receiver power supply voltage normal?
4-pin connector type
6-pin connector type
|
Yes
|
Go to the next step.
|
|
No
|
• Inspect for a burnt fuse (ROOM 15 A).
• Inspect the power supply system wiring harness for an open or short circuit.
|
||
|
23
|
Inspect the keyless receiver.
• Is the keyless receiver ground normal?
4-pin connector type
6-pin connector type
|
Yes
|
Go to the next step.
|
|
No
|
• Inspect the ground system wiring harness for an open circuit.
• Inspect the ground tightening screw and nut for looseness.
|
||
|
24
|
Turn the ignition switch to the LOCK position.
Disconnect the negative battery cable.
Disconnect the keyless receiver connector and the BCM connector.
• Inspect the wiring harness between the following terminals for an open or short circuit.
4-pin connector type
6-pin connector type
• Is it normal?
|
Yes
|
Go to the next step.
|
|
No
|
Repair or replace the wiring harness between the keyless receiver connector and the BCM.
|
||
|
25
|
Replace the keyless receiver.
• Does the keyless entry system operate normally?
|
Yes
|
Troubleshooting completed.
|
|
No
|
Replace the BCM, then go to the next step.
|
||
|
26
|
Does the keyless entry system operate normal?
|
Yes
|
Troubleshooting completed.
|
|
No
|
Verify the malfunction, then go to Step 1 if it recurs.
|
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