Toyota CH-R Service Manual: PIG Power Supply Voltage (C1552,C1554)
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:
- If the power steering ECU assembly has been replaced, perform assist
map writing and torque sensor zero point calibration.
Click here
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- Inspect the fuses for circuits related to this system before performing the following procedure.
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 | .gif) |
REPLACE POWER STEERING ECU ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Assist Map Number Mismatch (C1582)
DESCRIPTION
When an incorrect ECM, main body ECU (multiplex network body ECU) or skid control
ECU (brake actuator assembly) is installed after the assist map has been written
to the power steerin ...
Torque Sensor1 (C1511-C1514,C1517)
DESCRIPTION
The torque sensor converts the rotational torque received from the steering wheel
into electric signals and sends them to the power steering ECU assembly.
DTC No.
...
Other materials:
Toyota CH-R Service Manual > Rear Airbag Sensor: On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
CAUTION:
Be sure to correctly follow the removal and installation procedures for the No.
2 side airbag sensors.
PROCEDURE
1. INSPECT NO. 2 SIDE AIRBAG SENSOR (for Vehicle not Involved in Collision)
(a) Perform a diagnostic system check.
Click he ...
Toyota CH-R Service Manual > Pre-collision System: Operation Check
OPERATION CHECK
CHECK PRE-COLLISION SYSTEM SETTING
(a) Turn the ignition switch to ON.
(b) Operate the steering pad switch assembly to change the setting of PCS on
the multi-information display to "On" and check that the pre-collision system turns
on.
HINT:
When the ignition switc ...
Toyota C-HR (AX20) 2023-2026 Owner's Manual
Toyota CH-R Owners Manual
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Toyota CH-R Service Manual
- Introduction
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