PROBLEM SYMPTOMS TABLE
HINT:
Symptom |
Suspected Area |
See page |
---|---|---|
Theft deterrent system cannot be set |
Security indicator light circuit |
|
ECU power source circuit |
|
|
Front door lock assembly |
|
|
Rear door lock assembly |
|
|
Back door lock assembly |
|
|
Door courtesy switch circuit |
|
|
Back door lock assembly (back door courtesy switch) |
|
|
Engine hood courtesy switch circuit |
|
|
If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Security indicator does not blink when theft deterrent system is set |
Security indicator light circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Theft deterrent system can be set even when door is open |
Door courtesy switch circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Theft deterrent system can be set even when engine hood is open. |
Engine hood courtesy switch circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Vehicle horn(s) (low pitched, high pitched) do not sound while theft deterrent system is in warning operation |
Horn circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Headlights do not blink while theft deterrent system is in warning operation |
Headlight relay circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Taillights do not blink while theft deterrent system is in warning operation |
Taillight relay circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Hazard warning lights do not flash while theft deterrent system is in warning operation |
Wire harness or connector |
- |
Turn signal flasher assembly |
|
|
If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Interior light does not light up while theft deterrent system is in warning operation |
Interior light circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Security horn does not sound while theft deterrent system is in warning operation |
Security horn circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Headlights blink even when theft deterrent system is not set |
Headlight relay circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Taillights blink even when theft deterrent system is not set |
Taillight Relay Circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Hazard warning lights flash even when theft deterrent system is not set |
Wire harness or connector |
- |
Turn signal flasher assembly |
|
|
If the symptom(s) still occur after the above areas are inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
|
Interior light comes on even when theft deterrent system is not set |
Interior light circuit |
|
If the symptom(s) still occur after the above area is inspected and proved to be normal, replace the main body ECU (driver side junction block assembly) |
|
Diagnosis System
DIAGNOSIS SYSTEM
1. ECUS OR SENSORS WHICH COMMUNICATE THROUGH CAN COMMUNICATION SYSTEM
(a) CAN No. 1 Bus
(1) ECM
(2) Main body ECU (Driver side junction block)
(3) Combination meter
(4) Power steering ECU
(5) Air conditioning amplifier*3
(6) Center air ...
Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful bec ...
Vehicle Speed or Engine Speed Signal Malfunction (C2173/73)
DESCRIPTION
The tire pressure warning ECU receives a vehicle speed signal from the combination
meter and an engine speed signal from the ECM. The tire pressure warning ECU uses
these signals to detect DTCs C2121/21 to C2124/24 (No Signal from Transmitter) ...