DESCRIPTION
When a problem occurs in the power steering system, the power source relay circuit is shut off to stop the power assist.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
C1552 |
PIG power source circuit malfunction inside ECU |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
). PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM (PIG POWER SUPPLY) |
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Start the engine.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / EMPS / Data List.
(f) Select the items "PIG Power Supply" in the Data List and read the value displayed on the Techstream.
EMPS|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
PIG Power Supply |
Power source voltage to active motor/ Min.: 0 V Max.: 20.1531 V |
11 to 14 V |
The engine is running and power steering is operating. |
OK:
Normal condition value is displayed the Techstream.
| OK | |
REPLACE POWER STEERING ECU |
|
|
2. |
CHECK HARNESS AND CONNECTOR (POWER STEERING ECU - BATTERY AND BODY GROUND) |
|
(a) Disconnect the connector from the power steering ECU. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D19-1 (PIG) - Body ground |
Always |
11 to 14 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
D19-2 (PGND) - Body ground |
Always |
Below 1 Ω |
|
*1 |
Front view of wire harness connector (to Power Steering ECU) |
| OK | |
REPLACE POWER STEERING ECU |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Assist Map Number Mismatch (C1582)
Assist Map Number Un-Writing (C1581)Installation
INSTALLATION
CAUTION / NOTICE / HINT
NOTICE:
Always use a new grommet and valve core when installing the tire pressure
warning valve and transmitter.
Check that the washer and nut are not damaged, and replace them if necessary.
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Components
COMPONENTS
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
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Removal
REMOVAL
PROCEDURE
1. RECOVER REFRIGERANT FROM REFRIGERATION SYSTEM
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
When disconnecting the cable, some systems need to be initialized after the cable
is reconnected (See page ).
3. REMOVE FR ...