DESCRIPTION
If a problem occurs in the system, the power source relay circuit and the motor relay circuit are shut off to stop power assist. The ECU must be replaced when there is a problem with the relays because the relays are built into the ECU.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
Warning Indicate |
Return-to-normal Condition |
Note |
---|---|---|---|---|---|---|
C1552 |
PIG Power Supply Voltage |
PIG power source circuit malfunction |
|
EPS warning light: Comes on |
Ignition switch ON again |
- |
C1554 |
Power Supply Relay Failure |
Power source relay circuit malfunction |
|
EPS warning light: Comes on |
Ignition switch ON again |
- |
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. |
CHECK HARNESS AND CONNECTOR (POWER STEERING ECU ASSEMBLY - BODY GROUND) |
(a) Disconnect the F68 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 |
---|---|---|
F68-1 (PIG) - Body ground |
Ignition switch ON |
9 to 16 V |
(c) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
OK |
REPLACE POWER STEERING ECU ASSEMBLY |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Toyota CH-R Service Manual > Automatic High Beam System: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer
to registration.*1
*1: w/ Smart Key System
When replacing the forward recognition camera, always replace it with
a new one. If a forward recognition camera which was inst ...
Toyota CH-R Service Manual > Key Reminder Warning System: Operation Check
OPERATION CHECK
CHECK FUNCTION
(a) Check that the key reminder warning buzzer sounds.
(1) With the driver door closed, insert the key into the ignition key cylinder
and then make sure that the ignition switch is off or ACC.
(2) Check that the buzzer sounds intermittently if the driver door is ...