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:
Removal
SECURITY AND LOCKS > Access KeyREMOVALNOTE:Refer to keyless transmitter for model without keyless access with push button start. Keyless Transmitter > REMOVAL">1. ACCESS KEY BATTERYCAUTION:To prevent static electricity damage to the access key printed circuit board, touch the steel ar ...
Removal
FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Fuel PumpREMOVALWARNING:Place “NO OPEN FLAMES” signs near the working area.CAUTION:• Be careful not to spill fuel.• Catch the fuel from the tubes using a container or cloth.• If the fuel gauge indicates that two thirds or more of ...
Dtc u0416 invalid data received from vehicle dynamics control module
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULENOTE:For the diagnostic procedure, refer to LAN section. Basic Diagnostic Procedure">1. OUTLINE OF DIAGNOSISDetect malfunction of CAN co ...
