Toyota Tacoma 2015-2018 Service Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Use the table below to help determine the causes of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
|
Symptom |
Suspected Area |
See page |
|---|---|---|
|
Main switch cannot be turned ON (Indicator light on the combination meter does not come on) |
Cruise Control Switch Circuit |
|
|
Cruise Main Indicator Light Circuit |
|
|
|
ECM |
|
|
|
Desired speed cannot be set (Indicator light on the combination meter comes on when the main switch is turned ON, but goes off when operating the "SET" function) |
Cruise Control Switch Circuit |
|
|
ECM |
|
|
|
Desired speed cannot be set (Indicator light on the combination comes on when the main switch is turned ON and it remains ON, while operating the "SET" function) |
Cruise Control Switch Circuit |
|
|
Lighting System |
|
|
|
Clutch Switch Circuit (for Manual Transmission) |
|
|
|
Park/neutral Position Switch Circuit (for AC60E Automatic Transmission) |
|
|
|
Park/neutral Position Switch Circuit (for AC60F Automatic Transmission) |
|
|
|
Combination Meter System |
|
|
|
ECM |
|
|
|
While cruise control driving, the set speed is canceled (Indicator light remains ON) |
Cruise Control Switch Circuit |
|
|
Vehicle Speed Sensor Circuit |
|
|
|
Lighting System |
|
|
|
Cruise Main Indicator Light Circuit |
|
|
|
Clutch Switch Circuit (for Manual Transmission) |
|
|
|
Park/neutral Position Switch Circuit (for AC60E Automatic Transmission) |
|
|
|
Park/neutral Position Switch Circuit (for AC60F Automatic Transmission) |
|
|
|
ECM |
|
|
|
Hunting occurs (Speed is not constant) |
Vehicle Speed Sensor Circuit |
|
|
ECM |
|
|
|
Speed setting cannot be canceled ("CANCEL" function failure only) |
Cruise Control Switch Circuit |
|
|
ECM |
|
|
|
DTC is not output, or is output when should not be |
TC and CG Terminal Circuit |
|
|
ECM |
|
|
|
Cruise Main indicator light does not come on |
Cruise Control Switch Circuit |
|
|
Cruise Main Indicator Light Circuit |
|
|
|
ECM |
|
|
|
Combination Meter Assembly |
|
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use the following procedures to troubleshoot the cruise control system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGH ...
Road Test
ROAD TEST
HINT:
'SET' and '-', 'RES' and '+', 'ON-OFF' functions share the same switch. Operate
the cruise control main switch according to the directions i ...
Other materials:
Installation
INSTALLATION
PROCEDURE
1. ADJUST COMPRESSOR OIL
(a) for HFC-134a (R134a):
(1) When replacing the compressor and magnetic clutch with new ones, after gradually
discharging the refrigerant gas from the service valve, drain the following volume
of oil from new compressor and magnetic clutch bef ...
Installation
INSTALLATION
CAUTION / NOTICE / HINT
CAUTION:
Be sure to perform this procedure with several people as the transfer assembly
is very heavy.
PROCEDURE
1. INSTALL TRANSFER CASE LOWER PROTECTOR
(a) Install the transfer case lower protector with the 4 bolts.
Torque:
18 N·m {184 kgf·cm, 13 f ...
Dtc Check / Clear
DTC CHECK / CLEAR
1. CHECK DTC
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Air Conditioner / Trouble Codes.
(e) Check for DTCs.
2. CLEAR DTC
(a) Connect the Techstream to the DLC3.
( ...
