Toyota CH-R Service Manual: Lost Communication with Alternator (P161A)
DESCRIPTION
The ECM and generator assembly detect reception errors respectively.
The generator assembly reception error detected by the generator assembly is sent to the ECM via LIN communication. If an error occurs in the ECM or generator assembly, the ECM determines there is a LIN communication error and stores this DTC.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
P161A |
Lost Communication with Alternator |
Generator assembly or ECM communication stop for about 17 minutes or more with the ignition switch ON. (1 trip detection logic) |
|
WIRING DIAGRAM
PROCEDURE
|
1. |
CHECK CHARGING SYSTEM |
(a) Check the charging system.
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| NG | .gif) |
REPAIR OR REPLACE CHARGING SYSTEM |
|
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|
2. |
CHECK HARNESS AND CONNECTOR (ECM - GENERATOR WITH REGULATOR ASSEMBLY) |
(a) Disconnect the C63 ECM connector.
(b) Disconnect the C37 generator assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C63-61 (LIN) - C37-2 (LIN) |
Always |
Below 1 Ω |
|
C63-61 (LIN), C37-2 (LIN) - body ground |
Always |
10 kΩ or higher |
| OK | |
REPLACE GENERATOR ASSEMBLY |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
On-vehicle Inspection
ON-VEHICLE INSPECTION
CAUTION / NOTICE / HINT
NOTICE:
If the battery is weak or if the engine is difficult to start, recharge the battery
and perform inspections again before returning the vehicl ...
Charging Failure
PROCEDURE
1.
CHECK GENERATOR PULLEY WITH CLUTCH (ON-VEHICLE INSPECTION)
(a) Start the engine and visually check that the generator rotor assembly (fan)
in the gener ...
Other materials:
Toyota CH-R Service Manual > Air Conditioning Amplifier: Installation
INSTALLATION
PROCEDURE
1. INSTALL AIR CONDITIONING AMPLIFIER ASSEMBLY
(a) for VALEO Made:
(1) Connect each connector.
(2) Engage the guides to install the air conditioning amplifier assembly as shown
in the illustration.
Install in this Direction
(3) Install t ...
Toyota CH-R Service Manual > Safety Connect System: Data List / Active Test
DATA LIST / ACTIVE TEST
DATA LIST
HINT:
Using the Techstream to read the Data List allows the values or states of switches,
sensors, actuators and other items to be read without removing any parts. This non-intrusive
inspection can be very useful because intermittent conditions or signals may ...
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