Toyota Yaris: Dynamic Radar Cruise Control System / Cruise Control Input Processor (P160700)

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Cruise Control Input Processor (P160700)

DESCRIPTION

When the ECM detects that it is not functioning normally, DTC P160700 is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	DTC Output from
P160700	Cruise Control Input Processor	When the ignition switch is ON and control of vehicle speed by the dynamic radar cruise control system is prohibited by the sub-CPU, the dynamic radar cruise control system operates for 0.3 seconds or more.	ECM	Radar Cruise1

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the ECM, refer to Service Bulletin.

HINT:

Read the freeze frame data using the GTS. When a malfunction is detected, various engine control parameters are stored as freeze frame data and can be useful for troubleshooting.

PROCEDURE

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Radar Cruise1 > Clear DTCs

2.	CHECK FOR DTCs

(a) Make sure that the DTC detection conditions are met.

HINT:

If the detection conditions are not met, the system cannot detect the malfunction.

(b) Check for DTCs.

Powertrain > Radar Cruise1 > Trouble Codes

Result	Proceed to
DTC P160700 is not output	A
DTC P160700 is output	B

USE SIMULATION METHOD TO CHECK

REPLACE ECM

Brake System (P157800)

DESCRIPTION When a malfunction in the vehicle stability control system is detected, DTC P157800 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from P157800 Brake System When the ignition switch is ON and the dynamic radar cruise control system is operating, a malfunction in the vehicle stability control system is detected for 0...

Communication Error from VSC to ECM Invalid Serial Data Received (P163081)

DESCRIPTION The skid control ECU (brake actuator assembly) sends signals such as brake request signals to the ECM. If an abnormal signal is detected, the ECM stores DTC P163081...

Other information:

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Vacuum Regulating Valve

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Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Fail-safe Chart

FAIL-SAFE CHART If any of the following DTCs are stored, the engine stop and start ECU enters fail-safe mode to preserve vehicle operability. DTC Component Fail-safe Operation Fail-safe Deactivation Condition P033562 Open in engine speed signal circuit Stop and start control is prohibited Engine is automatically restarted if a DTC is stored while the engine is stopped by stop and start control All of the following conditions are met for 10 seconds: Normal communication with ECM Engine speed 500 rpm or higher Engine speed (communication signal) 500 rpm or higher Difference between engine speed from pulse signal and engine speed from communication signal is less than 100 rpm P055500 P05552A Vacuum sensor assembly Brake booster assembly Vacuum hose (brake booster hose) Stop and start control is prohibited Engine is automatically restarted if a DTC is stored while the engine is stopped by stop and start control One of the following conditions is met: Vacuum changes while the brake pedal is depressed Vacuum changes a specified number of times while the vehicle is being driven faster than a certain vehicle speed P055511 P055515 Vacuum sensor assembly circuit Stop and start control is prohibited Engine is automatically restarted if a DTC is stored while the engine is stopped by stop and start control Sensor output is within standard range P060629 Engine stop and start ECU Stop and start control is prohibited Engine is automatically restarted if a DTC is stored while the engine is stopped by stop and start control Pass condition detected and ignition switch turned to ON P060B1C P060B49 P060B71 Analog to digital converter (Engine stop and start ECU) Stop and start control is prohibited Engine is automatically restarted if a DTC is stored while the engine is stopped by stop and start control Pass condition detected and ignition switch turned to ON P061519 ST NO...