- Vehicle speed is 25 km/h (16 mph) or more
- Transfer shift lever is on H
| Last Modified: 7-3-2017 | 6.8:8.0.40 | Doc ID: RM0000012UV00BX |
| Model Year Start: 2007 | Model: LX470 | Prod Date Range: [08/2006 - ] |
| Title: A750F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION SYSTEM: P0818; Driveline Disconnect Switch Input Circuit; 2007 MY LX470 [08/2006 - ] | ||
|
DTC |
P0818 |
Driveline Disconnect Switch Input Circuit |
DESCRIPTION
The ECM detects the signal from the transfer neutral position switch.
This DTC indicates that the transfer neutral position switch remains ON.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
P0818 |
Transfer neutral position switch remains ON while vehicle is running under following conditions for 30 sec. (2 trip detection logic): |
|
MONITOR DESCRIPTION
The ECM detects whether or not the transfer shift lever is in neutral by monitoring the signal from the transfer neutral position switch.
If the ECM detects that the transfer shift lever is in neutral under the following conditions, the ECM will conclude that there is a malfunction of the transfer neutral position switch:
- Transfer neutral position switch indicates that the transfer shift lever is in neutral.
- Transfer shift lever is in the H position.
- The vehicle is traveling at 25 km/h (16 mph) or more.
- The transfer neutral position switch has been ON for more than 30 seconds.
If all of the above conditions are detected, the ECM will conclude that there is a malfunction of the transfer neutral position switch, illuminate the MIL and store the DTC.
MONITOR STRATEGY
|
Related DTCs |
P0818: Transfer neutral position switch/Verify switch cycling |
|
Required sensors/Components |
Transfer neutral position switch, Vehicle speed sensor |
|
Frequency of operation |
Continuous |
|
Duration |
30 sec. |
|
MIL operation |
2 driving cycles |
|
Sequence of operation |
None |
TYPICAL ENABLING CONDITIONS
|
The monitor will run whenever the following DTCs are not present. |
None |
|
Vehicle speed |
25 km/h (15.52 mph) or more |
|
Transfer position |
High |
|
Ignition switch ON and time after OFF to ON |
More than 0.5 sec. |
|
Battery voltage |
8 V or more |
|
Ignition switch |
ON |
|
Starter |
OFF |
TYPICAL MALFUNCTION THRESHOLDS
|
Transfer neutral switch signal |
ON |
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
|
1. |
INSPECT TRANSFER INDICATOR SWITCH (TRANSFER NEUTRAL POSITION SWITCH) |
|
(a) Remove the transfer indicator switch. (b) Measure the resistance of the switch when pushing the ball at the tip of the switch. Standard resistance:
|
|
| NG |
|
REPLACE TRANSFER INDICATOR SWITCH (TRANSFER NEUTRAL POSITION SWITCH) |
|
|
2. |
CHECK WIRE HARNESS (TRANSFER INDICATOR SWITCH - BODY GROUND) |
(a)
Check wire harness
![2007 MY LX470 [08/2006 - ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: ELECTRONIC CIRCUIT INSPECTION PROCEDURE](../../../../stylegraphics/info.gif "2007 MY LX470 [08/2006 - ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: ELECTRONIC CIRCUIT INSPECTION PROCEDURE")
.
| NG |
|
| OK |
|
|
|