LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2000 >> B4000 SE, 4WD, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls Trouble Shooting (4 Of 5) >> Diagnostic Index >> Automatic Transmission Shift Concerns
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Automatic Transmission Shift Concerns

DETECTION CONDITION AND POSSIBLE CAUSE

14 AUTOMATIC TRANSMISSION SHIFT CONCERNS
DESCRIPTION 
  • A/T upshift concern
  • A/T downshift concern
  • Engagement concern
AUTOMATIC TRANSMISSION SHIFT CONCERNS INSPECTION

STEP INSPECTION ACTION
1 CAN THE ENGINE BE TURNED OFF?
  • Perform the following preliminary checks:
    • Transmission fluid concerns (such as level, quality, leaks).
    • Wiring harness (connections).
    • Vehicle modifications (such as related electronic add-on items, large changes in tire diameter).
    • Are all checks OK? 
 Yes Go to step 2
No Service as required. Verify symptom no longer exists.
2 PERFORM PCM QUICK TEST
  • Are any DTCs displayed during Continuous Memory, Key ON, Engine OFF (KOEO) or Key ON, Engine Running (KOER) Self Tests ? 
 Yes Check for cause.

See DIAGNOSTIC TROUBLE CODE NUMBERS .
No Go to step 3.
3 CHECK TRANSMISSION
See DIAGNOSIS - 4R44E or DIAGNOSIS - 5R55E for automatic transmission concerns.
  • Is transmission OK? 
 Yes Go to step 4.
No Service as required.
4
  • Verify test results. If OK,

See DIAGNOSTIC INDEX  to service any additional symptoms
scientia non olet · About LEMON Manuals