DESCRIPTION
The power steering ECU assembly distinguishes the ignition switch status as ON or off through the IG power source circuit.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Warning Indicate |
Return-to-normal Condition |
Note |
---|---|---|---|---|---|---|
C1551 |
IG Power Supply Voltage |
Open or short in IG power source circuit with power switch on (IG) |
|
EPS warning light: Comes on |
The ECU judges the system has returned to normal or the ignition switch is turned ON again |
- |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (BATTERY - POWER STEERING ECU ASSEMBLY) |
(a) Disconnect the F68 and F23 power steering ECU assembly connectors. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F23-1 (IG) - Body ground |
Ignition switch ON |
8 to 16 V |
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
F68-2 (PGND) - Body ground |
Always |
Below 1 Ω |
OK | ![]() |
REPLACE POWER STEERING ECU ASSEMBLY |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
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DIAGNOSTIC TROUBLE CODE CHART
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DTC No.
Detection Item
DTC Detection Condition
Link
B1411
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