Subaru Crosstrek Service Manual: Dtc p1493 coil 1 egr "a" control circuit high

Subaru Crosstrek Service Manual / Engine (diagnostics)(h4do) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p1493 coil 1 egr "a" control circuit high

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC P1493 COIL 1 EGR "A" CONTROL CIRCUIT HIGH

NOTE:

For the diagnostic procedure, refer to DTC P1499. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P1499 COIL 4 EGR "A" CONTROL CIRCUIT HIGH">

1. OUTLINE OF DIAGNOSIS

• Detects open or short circuit of EGR.

• Judge as NG when the ECM output level differs from the actual terminal level.

2. COMPONENT DESCRIPTION

(1)	Engine control module (ECM)	(4)	Switch circuit	(6)	Main relay
(2)	Computer unit (CPU)	(5)	Battery voltage	(7)	EGR control valve
(3)	Detecting circuit

3. EXECUTION CONDITION

Secondary Parameters	Execution condition
Battery voltage	≥ 10.9 V
EGR control signal	OFF

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Judgment Value

Malfunction Criteria	Threshold Value
EGR control current	≥ 6 A

Time Needed for Diagnosis: 2500 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

Dtc p1492 coil 1 egr "a" control circuit low

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P1492 COIL 1 EGR "A" CONTROL CIRCUIT LOWNOTE:For the diagnostic procedure, refer to DTC P1498. Dia ...

Dtc p1494 coil 2 egr "a" control circuit low

ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P1494 COIL 2 EGR "A" CONTROL CIRCUIT LOWNOTE:For the diagnostic procedure, refer to DTC P1498. Dia ...

Other materials:

Dtc b27a2 passenger side external antenna open
KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B27A2 PASSENGER SIDE EXTERNAL ANTENNA OPENDTC detecting condition:When open circuit occurs in the harness between keyless access CM and passenger’s side front door outer h ...

Dtc p0038 a/f / o2 heater control circuit high bank 1 sensor 2
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0038 A/F / O2 HEATER CONTROL CIRCUIT HIGH BANK 1 SENSOR 2DTC DETECTING CONDITION:Detected when two consecutive driving cycles with fault occur.CAUTION:After servicing or replacing faulty parts, perform Clear ...

Initial illumination for system check
Several of the warning and indicator lights illuminate when the ignition switch is initially turned to the "ON" position. This permits checking the operation of the bulbs. Apply the parking brake and turn the ignition switch to the "ON" position. For the system check, the following lights ...