DTC P0773 [FN4A-EL]

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DTC P0773 [FN4A-EL]

B3E050219090W35

DTC P0773 | Shift solenoid E malfunction (electrical)
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DETECTION CONDITION

• If PCM detects either of the following conditions while driving in 4GR at D range with TCC operating, PCM determines that shift solenoid E circuit has a malfunction.

  - Shift solenoid E voltage stuck at B+ after engine start
  - Shift solenoid E voltage stuck at 0 V after engine start

Diagnostic support note:
• This is a continuous monitor (CCM).
• The MIL illuminates if the PCM detects the above malfunction conditions during the first drive cycle.
• A PENDING CODE is not available.
• FREEZE FRAME DATA is available.
• The AT warning light illuminates.
• The DTC is stored in the PCM memory.

POSSIBLE CAUSE

• Shift solenoid E malfunction
• Short to ground in wiring harness between ATX terminal F and PCM terminal 1AR (Z6)/1F (LF)
• Short to power supply in wiring harness between ATX terminal F and PCM terminal 1AR (Z6)/1F (LF)
• Open circuit in wiring harness between shift solenoid E terminal A and ATX terminal F
• Open circuit in wiring harness between ATX terminal F and PCM terminal 1AR (Z6)/1F (LF)
• Damaged connector between shift solenoid E and PCM
• PCM malfunction

Diagnostic procedure

STEP | INSPECTION | ACTION
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1 | VERIFY FREEZE FRAME DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA been recorded? | Yes | Go to the next step.
No | Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2 | VERIFY RELATED REPAIR INFORMATION AVAILABILITY • Verify related Service Bulletins and/or on-line repair information availability. • Is any related repair information available? | Yes | Perform repair or diagnosis according to the available repair information. • If the vehicle is not repaired, go to the next step.
No | Go to the next step.
3 | INSPECT ATX CONNECTOR FOR POOR CONNECTION • Turn the ignition switch to the LOCK position. • Disconnect the ATX connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is the connection normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminals, then go to Step 11.
4 | INSPECT RESISTANCE • Inspect the resistance between ATX terminal F (transaxle case side) and body ground. • Is the resistance within 10.9-26.2 ohms? (See Resistance Inspection (On-Vehicle Inspection).) | Yes | Go to Step 7.
No | Go to the next step.
5 | INSPECT SHIFT SOLENOID E CONNECTOR FOR POOR CONNECTION • Disconnect the shift solenoid E connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is the connection normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminals, then go to Step 11.
6 | INSPECT RESISTANCE • Inspect the resistance between shift solenoid E terminal A (part-side) and body ground. • Is the resistance within 10.9-26.2 ohms? (See Resistance Inspection (Off-Vehicle Inspection).) | Yes | Replace the solenoid wiring harness, then go to Step 11.
No | Verify shift solenoid E installation. • If solenoid installed correctly, replace the solenoid, then go to Step 11. (See SOLENOID VALVE REMOVAL/INSTALLATION.)
7 | INSPECT PCM CONNECTOR FOR POOR CONNECTION • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is the connection normal? | Yes | Go to the next step.
No | Repair or replace the connector and/or terminals, then go to Step 11.
8 | INSPECT ATX CONNECTOR CIRCUIT FOR OPEN CIRCUIT • Inspect for continuity between PCM terminal 1AR (Z6)/1F (LF) (wiring harness-side) and ATX terminal F (wiring harness-side). • Is there continuity between terminals? | Yes | Go to the next step.
No | Repair or replace the wiring harness, then go to Step 11.
9 | INSPECT ATX CONNECTOR CIRCUIT FOR SHORT TO POWER SUPPLY • Turn the ignition switch to the ON position (engine off). • Inspect the voltage at ATX terminal F (wiring harness-side). • Is the voltage 0 V? | Yes | Go to the next step.
No | Repair or replace the wiring harness, then go to Step 11.
10 | INSPECT PCM CIRCUIT FOR SHORT TO GROUND • Turn the ignition switch to the LOCK position. • Inspect for continuity between PCM terminal 1AR (Z6)/1F (LF) (wiring harness-side) and body ground. • Is there continuity? | Yes | Repair or replace the wiring harness, then go to Step 11.
No | Go to the next step.

11

VERIFY TROUBLESHOOTING OF DTC P0773 COMPLETED

• Make sure to reconnect all the disconnected connectors.
• Clear the DTC from the memory using the WDS or equivalent.
• Drive the vehicle in D range and make sure that gears shift smoothly from 1GR to 4GR.
• Are any DTCs present?

Yes

Replace the PCM, then go to the next step.
(See PCM REMOVAL/INSTALLATION [ZJ, Z6].)
(See PCM REMOVAL/INSTALLATION [LF].)

No | No concern is detected. Go to the next step.
12 | VERIFY AFTER REPAIR PROCEDURE • Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE [FN4A-EL].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection.
No | DTC troubleshooting completed.