DESCRIPTION
Power is supplied to the radio and display receiver assembly and steering pad switch assembly illumination when the light control switch is in the tail or head position.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK ILLUMINATION |
(a) Check if the illumination for the radio and display receiver assembly, steering pad switch assembly, heater control switch or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the head or tail position.
Result |
Proceed to |
---|---|
Illumination comes on for all components except steering pad switch assembly. |
A |
Illumination comes on for all components except radio and display receiver assembly. |
B |
Illumination comes on only for steering pad switch assembly. |
C |
No illumination comes on (radio and display receiver assembly, hazard switch, heater control switch, etc.). |
D |
B | ![]() |
GO TO STEP 5 |
C | ![]() |
GO TO METER / GAUGE SYSTEM |
D | ![]() |
GO TO LIGHTING SYSTEM |
|
2. |
CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL) |
(a) Disconnect the D18 spiral cable with sensor sub-assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D18-12 (IL+2) - Body ground |
Light control switch in the tail or head position |
11 to 14 V |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT STEERING PAD SWITCH ASSEMBLY |
(a) Remove the steering pad switch assembly (See page
).
(b) Connect a battery positive (+) lead to terminal 5 (IL+2) and a negative (-) lead to terminal 3 (-DP) of the steering pad switch assembly connector.
*a |
Component without harness connected (Steering Pad Switch Assembly) |
- |
- |
(c) Check if the illumination for the steering pad switch assembly comes on.
OK:
Illumination for the steering pad switch assembly comes on.
NG | ![]() |
REPLACE STEERING PAD SWITCH ASSEMBLY |
|
4. |
INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY |
(a) Remove the spiral cable with sensor sub-assembly (See page
).
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
(c) After setting the spiral cable with sensor sub-assembly to the center position, rotate the spiral cable with sensor sub-assembly 2.5 times clockwise. Then while rotating the spiral cable with sensor sub-assembly 5 times counterclockwise, measure the resistance according to the value(s) the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
z5-5 (IL+2) - D18-12 (IL+2) |
Always |
3 Ω or less |
z5-3 (-DP) - D18-10 (-DP) |
Always |
3 Ω or less |
NOTICE:
*a |
Component without harness connected (Spiral Cable with Sensor Sub-assembly) |
*b |
Steering Pad Switch Assembly Side |
*c |
Vehicle Side |
OK | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY - BODY GROUND) |
NG | ![]() |
REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY |
5. |
CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL) |
(a) Disconnect the E4 radio and display receiver assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E4-10 (ILL+) - Body ground |
Light control switch in the tail or head position |
11 to 14 V |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - COMBINATION METER ASSEMBLY) |
(a) Disconnect the E5 radio and display receiver assembly connector.
(b) Disconnect the E2 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E5-5 (ILL-) - E2-12 (ILL-) |
Always |
Below 1 Ω |
E5-5 (ILL-) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedure to troubleshoot the engine immobiliser system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
NEXT
...
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 ...
Fail-safe Chart
FAIL-SAFE CHART
1. FAIL-SAFE FUNCTION
(a) When communication fails in any of the CAN bus wires (communication wires),
a fail-safe function(s) will operate. The fail-safe function that is specified for
each system operates to prevent those systems from ma ...