Dtc P161A Lin Communication Error With Alternator
DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK CHARGING SYSTEM
CHECK HARNESS AND CONNECTOR (ECM - GENERATOR ASSEMBLY)
INSPECT GENERATOR ASSEMBLY
DTC P161A LIN Communication Error with Alternator |
DESCRIPTION
The ECM and generator assembly each detect reception malfunctions. A generator assembly reception malfunction detected by the generator assembly is sent to the ECM via LIN communication. If there is a malfunction in either the ECM or generator assembly, the ECM determines that there is a LIN communication malfunction and outputs a DTC.DTC Code
| DTC Detection Condition
| Trouble Area
|
P161A
| Diagnosis condition:
Ignition switch ON
When the ECM cannot receive LIN communication, the generator assembly cannot receive LIN communication for approximately 17 minutes or more
Other: 1 trip
| - Harness or connector
- Generator assembly
- ECM
|
WIRING DIAGRAM
INSPECTION PROCEDURE
Check the charging system (LandCruiser RM000001AR90C3X.html).
| | REPAIR OR REPLACE CHARGING SYSTEM |
|
|
| 2.CHECK HARNESS AND CONNECTOR (ECM - GENERATOR ASSEMBLY) |
Disconnect the C154 ECM connector.
Disconnect the C157 generator assembly connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance (Check for Open):
Tester Connection
| Condition
| Specified Condition
|
C154-16 (LIN) - C157-2 (LIN)
| Always
| Below 1 Ω
|
- Standard Resistance (Check for Short):
Tester Connection
| Condition
| Specified Condition
|
C154-16 (LIN) or C157-2 (LIN) - Body ground
| Ignition switch off (while LIN communication is stopped)
| 10 kΩ or higher
|
Reconnect the C157 generator assembly connector.
Reconnect the C154 ECM connector.
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
| 3.INSPECT GENERATOR ASSEMBLY |
Inspect the generator assembly (LandCruiser RM0000017AT00LX.html).
