DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
INSPECT FUSE (ECU-IG1 No. 1)
CHECK MULTIPLEX TILT AND TELESCOPIC ECU (IG TERMINAL VOLTAGE)
CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY GROUND)
CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - MAIN BODY ECU)
POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM - IG Power Source Circuit
DESCRIPTION
When the engine switch is turned on (IG), the IG power source circuit supplies positive (+) voltage to the multiplex tilt and telescopic ECU.
The multiplex tilt and telescopic ECU also receives engine switch signals via this circuit.
WIRING DIAGRAM
INSPECTION PROCEDURE
| 1.INSPECT FUSE (ECU-IG1 No. 1) |
Remove the ECU-IG1 No. 1 fuse from the main body ECU.
Measure the resistance of the fuse.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| ECU-IG1 No. 1 fuse | Always | Below 1 Ω |
| 2.CHECK MULTIPLEX TILT AND TELESCOPIC ECU (IG TERMINAL VOLTAGE) |
Disconnect the E27 connector from the multiplex tilt and telescopic ECU.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
| E27-8 (IG) - E27-11 (GND) | Engine switch on (IG) | 11 to 14 V |
| OK | |
| |
| REPLACE MULTIPLEX TILT AND TELESCOPIC ECU ()
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| 3.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY GROUND) |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| E27-11 (GND) - Body ground | Always | Below 1 Ω |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 4.CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - MAIN BODY ECU) |
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
| Tester Connection | Switch Condition | Specified Condition |
| 2D-56 - Body ground | Engine switch on (IG) | 11 to 14 V |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR (MAIN BODY ECU - BATTERY) |
|
|
| OK | |
| |
| REPAIR OR REPLACE HARNESS OR CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - MAIN BODY ECU) |
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