Subaru Crosstrek Service Manual: 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 LOW
NOTE:
For the diagnostic procedure, refer to DTC P1498. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC P1498 COIL 4 EGR "A" CONTROL CIRCUIT LOW">
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
Perform diagnosis continuously during EGR operation.
5. DIAGNOSTIC METHOD
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Malfunction Criteria | Threshold Value |
EGR control voltage | ≤ Battery voltage ? 0.34 V |
Time Needed for Diagnosis: 2500 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
Dtc p1451 evap system clog detected (pipe)
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P1451 EVAP SYSTEM CLOG DETECTED (PIPE)DTC DETECTING CONDITION:Detected when two consecutive driving cycles wi ...
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 HIGHNOTE:For the diagnostic procedure, refer to DTC P1499. Di ...
Other materials:
Using a flat-bed truck
This is the best way to transport your
vehicle. Use the following procedures to
ensure safe transportation.
1. Shift the select lever into the "P" position for CVT models. Shift the shift
lever into the "1st" position for MT models.
2. Pull up the parking brake lever firmly.
3. Secur ...
Self-check screen
When the ignition switch is turned to the
"ON" position, the vehicle self-check will
be performed. The screens corresponding
to the following items will appear one after
another for several seconds each.
Engine oil: Checks the interval of engine
oil replacement.
Oil filter: Checks th ...
Dtc c2022 tire 2 air pressure low (normal mode)
TIRE PRESSURE MONITORING SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC C2022 TIRE 2 AIR PRESSURE LOW (NORMAL MODE)NOTE:Refer to DTC C2024 for diagnostic procedure. Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC C2024 TIRE 4 AIR PRESSURE LOW ( ...
