Preparation
Control unitP0456 evap control system
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0456 is displayed with DTC P0442, first perform the trouble diagnosis
for DTC P0456.
This diagnosis detects very small leakage in the EVAP line between fuel tank
and EVAP canister purge volume
control solenoid valve, using the intake manifold va ...
Symptom diagnosis
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Work Flow
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist
when the noise occurs. Use the Diagnostic Worksheet during the interview to
document the facts and conditions when the noise occurs and any customer' ...
Key slot
Diagnosis Procedure
Regarding Wiring Diagram information, refer to SEC-147,
"Wiring Diagram" or SEC-128, "Wiring Diagram".
1.CHECK KEY SLOT POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect key slot connector.
Check voltage between slot harness co ...