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
HINT:
[*1] : Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
HINT:
Click here
HINT:
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.
(c) Check for DTCs.
Click here
Result |
Proceed to |
---|---|
DTC P160700 is not output |
A |
DTC P160700 is output |
B |
A | ![]() |
USE SIMULATION METHOD TO CHECK |
B | ![]() |
GO TO SFI SYSTEM |
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the parts listed in
the table below and proceed to the "See page" given.
*1: "Comes on" means the Malfunction Indicator Lamp (MIL) illuminates.
*2: "DTC stored" means ...
Fail-safe Chart
FAIL-SAFE CHART
1. FAIL-SAFE OPERATION AND DEACTIVATION CONDITION
DIFFERENTIAL SYSTEM (w/ Differential Lock)
DTC No.
Fail-safe Operation
Fail-safe Deactivation Condition
U0122
All switching prohibited
When rear differential is locked ...
4WD Control ECU Communication Stop Mode
DESCRIPTION
Detection Item
Symptom
Trouble Area
4WD Control ECU Communication Stop Mode
Either condition is met:
Communication stop for "Four Wheel Drive Control" is indicated
on the "Communication Bus C ...