DESCRIPTION
If a malfunction in the engine control system is detected, the operations of VSC and TRAC are prohibited by the fail-safe function. When the signals from the engine are input normally, the fail-safe is cancelled and the DTC is not stored.
DTC Code |
DTC Detection Condition |
Trouble Area |
---|---|---|
C1201/51 |
Engine control system malfunction signal continues for 5 seconds. |
Engine control system |
PROCEDURE
1. |
CHECK ENGINE CONTROL SYSTEM |
(a) Check if the engine control system DTC is output (See page
for 2GR-FE, or
for 1AR-FE).
Result |
Proceed to |
---|---|
DTC is not output (for 2GR-FE) |
A |
DTC is not output (for 1AR-FE) |
B |
DTC is output (for 2GR-FE) |
C |
DTC is output (for 1AR-FE) |
D |
A | ![]() |
REPLACE ECM (for 2GR-FE) |
B | ![]() |
REPLACE ECM (for 1AR-FE) |
C | ![]() |
INSPECT ENGINE CONTROL SYSTEM (for 2GR-FE) |
D | ![]() |
INSPECT ENGINE CONTROL SYSTEM (for 1AR-FE) |
Poor Sound Quality in All Modes (Low Volume)
PROCEDURE
1.
CHECK AUDIO SETTINGS
(a) Set treble, middle and bass to the initial values and check that the sound
is normal.
OK:
The sound returns to normal.
HINT:
Sound quality adjustment measures vary according to the ...
Evaporative Emission System Switching Valve Control Circuit High (P2420)
DTC SUMMARY
DTC No.
Monitoring Item
Malfunction Detection Condition
Trouble Area
Detection Timing
Detection Logic
P2420
Vent valve stuck open (vent)
Follo ...
A/C ECU Vehicle Information Reading/Writing Processor Malfunction (B15F5)
DESCRIPTION
This DTC is stored when items controlled by the air conditioning amplifier assembly
cannot be customized via the navigation system vehicle customization screen.
HINT:
The air conditioning amplifier assembly controls the air conditioning system ...