DRIVEABILITY AND EMISSIONS 6E1-215
Purge Control
0.5 R/L
DIAGNOSTIC TROUBLE CODE (DTC) (Flash DTC = 62)
EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
CANISTER PURGE CONTROL VALVE CIRCUIT HIGH ERROR (IF APPLICABLE)
Circuit Description
The engine control Module (ECM) controls the
Evaporative Emission (EVAP) Canister Purge
Solenoid Valve through the use of a control (ground)
circuit. If the ECM commands the Purge solenoid to
maximum duty cycle (100%) but the voltage remains
High (12 volts); or, if the ECM commands the Purge
solenoid to minimum duty cycle (0%) but the voltage
remains high (12 volts), this malfunction detects a high
impedance short to ground or open contact on the
canister purge solenoid output. Then DTC 62 will set.
Conditions for Setting the DTC
• Driver feedback information shows a high state at
its operation even when commanded low.
Action Taken When the DTC Sets
• The ECM will illuminate the Malfunction Indicator
Lamp (MIL).
Conditions for Clearing the MIL/DTC
Once the ECM determines that a fault(s) has been
rectified then the CEL will switch OFF, although the
fault code will remain in the ECM memory.
Any fault codes will remain in ECM memory until -
1. They are cleared by disconnecting the Battery for
more than 30 seconds.
2. A service tool such as Tech 2 is used to clear them.
3. Ten consecutive starts without logging a fault.
Diagnostic Aids
• Poor connections, or a damaged harness - Inspect
the harness connectors for: backed-out terminals,
improper mating or damaged terminals. Also check
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