DESCRIPTION
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
U0164 |
No communication from the air conditioning amplifier continues. |
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
HINT:
PROCEDURE
1. |
RECONFIRM DTC OUTPUT |
(a) Reconfirm DTCs.
HINT:
If power management bus DTC U1002 is output from the power management control ECU (Techstream display: PM2 Gateway), troubleshoot for U1002 and check for malfunctions in the power management main bus circuit.
Result |
Proceed to |
---|---|
U1002 is not output from power management control ECU (Techstream display: PM2 Gateway) |
A |
U1002 is output from power management control ECU (Techstream display: PM2 Gateway) |
B |
B | ![]() |
GO TO CIRCUITS INDICATED BY OUTPUT DTCS |
|
2. |
CHECK FOR OPEN IN CAN BUS WIRES (AIR CONDITIONING AMPLIFIER BRANCH WIRE) |
(a) Turn the ignition switch off.
(b) Disconnect the air conditioning amplifier connector. Text in Illustration
|
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D47-11 (CANH) - D47-12 (CANL) |
Ignition switch off |
54 to 69 Ω |
NG | ![]() |
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (AIR CONDITIONING AMPLIFIER BRANCH WIRE) |
|
3. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL) |
(a) Turn the ignition switch to ON.
(b) Measure the voltage according to the value(s) in the table below. Standard Voltage:
|
|
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
4. |
CHECK HARNESS AND CONNECTOR (GROUND TERMINAL) |
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
OK | ![]() |
REPLACE AIR CONDITIONING AMPLIFIER |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT) |
System Description
SYSTEM DESCRIPTION
1. CRUISE CONTROL SYSTEM
This system is controlled by the ECM, and is activated by the throttle position
sensor and motor. The ECM controls the following functions: ON-OFF, - SET, + RES,
CANCEL, vehicle speed control, motor output cont ...
Removal
REMOVAL
PROCEDURE
1. REMOVE TAIL EXHAUST PIPE ASSEMBLY (for 1AR-FE)
2. REMOVE TAIL EXHAUST PIPE ASSEMBLY (for 2GR-FE)
3. REMOVE CENTER EXHAUST PIPE ASSEMBLY (for 1AR-FE)
4. REMOVE CENTER EXHAUST PIPE ASSEMBLY (for 2GR-FE)
5. REMOVE PROPELLER ...
Ignition Switch Circuit
DESCRIPTION
The main body ECU (driver side junction block assembly) determines the ignition
switch position (OFF, ACC, ON) based on signals from the IG or ACC circuit.
WIRING DIAGRAM
PROCEDURE
1.
READ VALUE USING TECHSTREAM
...