Toyota Tacoma (2015-2018) Service Manual: Cruise Control Input Processor (P160700)
DESCRIPTION
The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from the CPUs are different and deviate from the standard, the ECM will illuminate the MIL and store the DTC.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
|---|---|---|---|---|
|
P160700 |
Cruise Control Input Processor |
When prohibited by the sub-CPU, the dynamic radar cruise control system operates for 0.3 seconds or more. |
ECM |
Comes on |
MONITOR DESCRIPTION
The ECM continuously monitors its main and sub CPUs. This self-check ensures that the ECM is functioning properly. If outputs from the CPUs are different and deviate from the standard, illuminate the MIL and store the DTC immediately.
MONITOR STRATEGY
|
Related DTCs |
P1607: Internal control module performance |
|
Required Sensors/Components (Main) |
ECM |
|
Required Sensors/Components (Related) |
Cruise control |
|
Frequency of Operation |
Continuous |
|
Duration |
0.3 seconds |
|
MIL Operation |
Immediate |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
|
Monitor runs whenever the following DTCs are not stored |
None |
|
All of the following conditions are met |
- |
|
Cruise control |
Forbiddance |
|
DMA communication error |
Not detected |
TYPICAL MALFUNCTION THRESHOLDS
|
Cruise control |
Operating |
CONFIRMATION DRIVING PATTERN
HINT:
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here .gif)
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the Techstream off.
- Turn the ignition switch off.
- Disconnect the Techstream.
- Disconnect the cable from the negative (-) battery terminal and wait for 1 minute.
- Connect the cable to the negative (-) battery terminal.
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Turn the cruise control main switch on.
- Wait 16 seconds or more.[*1]
HINT:
[*1] : Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- Enter the following menus: Powertrain / Radar Cruise 1 / Trouble Codes.
- Read the DTCs.
HINT:
- If a DTC is output, the system is malfunctioning.
- If a DTC is not output, perform the following procedure.
- If the DTCs are not output, perform a universal trip and check for permanent
DTCs.
Click here
HINT:
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTCs are output, the system is normal.
CAUTION / NOTICE / HINT
HINT:
The ECM receives signals from each sensor to control all functions of the dynamic radar cruise control system. When a DTC is detected, the fail-safe function remains on until the ignition switch is turned off.
PROCEDURE
|
1. |
CHECK FOR DTCs |
(a) Clear the DTCs.
Click here
(b) Perform the following procedure.
HINT:
If the following procedure is not performed, the previously output DTC cannot be detected.
- Turn the ignition switch to ON.
- Turn the dynamic radar cruise control system on using the cruise control main switch.
- Wait for 1 second or more.
(c) Check for DTCs.
Click here
|
Result |
Proceed to |
|---|---|
|
DTC P160700 is not output |
A |
|
DTC P160700 is output |
B |
| A | .gif) |
USE SIMULATION METHOD TO CHECK |
| B | |
GO TO SFI SYSTEM |
Brake System (P157800)
DESCRIPTION
This DTC is stored when a malfunction is detected in the vehicle stability control
system.
DTC No.
Detection Item
DTC Detection Condition
Tr ...
Communication Error from VSC to ECM Invalid Serial Data Received (P163081)
DESCRIPTION
The skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake
actuator assembly)*2 sends signals such as cruise control cancel signals and brake
demand response signals ...
Other materials:
Precaution
PRECAUTION
1. PRECAUTIONS FOR REFRIGERANT HFO-1234yf (R1234yf)
(a) Compatibility
(1) The parts used in the refrigerant cycle, the compressor oil, etc. of the
HFO-1234yf (R1234yf) system are not compatible with the conventional HFC-134a (R134a)
system.
(b) HFO-1234yf (R1234yf) Refrigerant
(1 ...
Installation
INSTALLATION
PROCEDURE
1. INSTALL TRANSFER ASSEMBLY
Click here
2. INSTALL WIRING HARNESS CLAMP BRACKET
(a) Install the 4 wiring harness clamp brackets with the 4 bolts.
Torque:
8.0 N·m {82 kgf·cm, 71 in·lbf}
3. INSTALL TRANSMISSION BREATHER SUB-ASSEMBLY
(a) Install the 2 brackets to t ...
System Diagram
SYSTEM DIAGRAM
Transmitting ECU (Transmitter)
Receiving ECU
Signal
Communication Method
4 wheel drive control ECU
Skid control ECU (Brake actuator assembly)
High-Low actuator fail
4WD status ...
