CHARGING SYSTEM, Diagnostic DTC:P161A
| DTC Code | DTC Name |
|---|---|
| P161A | LIN Communication Error with Alternator |
DESCRIPTION
The power management control ECU and generator assembly detect reception errors respectively.
The generator assembly reception error detected by the generator assembly is sent to the power management control ECU via LIN communication. If an error occurs in the power management control ECU or generator assembly, the power management control ECU determines there is a LIN communication error and stores this DTC.
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
P161A |
A reception error in the power management control ECU or generator assembly continues for approximately 17 minutes or more with the ignition switch ON (1 trip detection logic). |
|
WIRING DIAGRAM
PROCEDURE
CHECK CHARGING SYSTEM
Check the charging system (Click here).
Table 1. Result Result
Proceed to
OK
w/ Entry and Start System
A
w/o Entry and Start System
B
NG
C
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - GENERATOR ASSEMBLY)Click here
REPAIR OR REPLACE CHARGING SYSTEM
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - GENERATOR ASSEMBLY)
Disconnect the H70 power management control ECU connector.
Disconnect the C101 generator assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
H70-1 (LIN1) - C101-1 (LIN)
Always
Below 1 Ω
H70-1 (LIN1) or C101-1 (LIN) - Body ground and other terminals
Ignition switch off (while LIN communication is stopped)
10 kΩ or higher
Table 2. Result Result
Proceed to
NG
A
OK
B
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - GENERATOR ASSEMBLY)
INSPECT GENERATOR ASSEMBLYClick here
CHECK HARNESS AND CONNECTOR (POWER MANAGEMENT CONTROL ECU - GENERATOR ASSEMBLY)
Disconnect the H73 power management control ECU connector.
Disconnect the C101 generator assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection
Condition
Specified Condition
H73-17 (LIN1) - C101-1 (LIN)
Always
Below 1 Ω
H73-17 (LIN1) or C101-1 (LIN) - Body ground and other terminals
Ignition switch off (while LIN communication is stopped)
10 kΩ or higher
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER MANAGEMENT CONTROL ECU - GENERATOR ASSEMBLY)
INSPECT GENERATOR ASSEMBLY
Inspect the generator assembly (Click here).
Table 3. Result Result
Proceed to
OK
for LHD
A
for RHD
B
NG
C