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DTC P0882:00 [TCM (SJ6A-EL)]

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2016 – MX-5 – Transmission/Transaxle

DTC P0882:00 [TCM (SJ6A-EL)]

DTC P0882:00

Power supply voltage: Low input

DETECTION CONDITION

  • Vehicle condition: TCM communication normal while engine is idling

  • Status: Detects terminal B+ current of 9.05 V or less

  • Period: Confirmed 20 times continuously for 1 s or more

FAIL-SAFE FUNCTION

  • Inhibits learning control.

  • Sets to emergency mode.

POSSIBLE CAUSE

  • Melted AT 15 A fuse

  • Short to ground in wiring harness between AT 15 A fuse and TCM terminal 2AE

  • Short to ground in wiring harness between AT 15 A fuse and TCM terminal 2AI

  • Open circuit in wiring harness between AT 15 A fuse and TCM terminal 2AE

  • Open circuit in wiring harness between AT 15 A fuse and TCM terminal 2AI

  • TCM connector or terminal malfunction

  • TCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1

RECORD VEHICLE STATUS WHEN DTC WAS DETECTED TO UTILIZE WITH REPEATABILITY VERIFICATION

NOTE:

  • Recording can be facilitated using the screen capture of the PC function.

  • Record the freeze frame data/snap shot data.

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 AT 15 A FUSE

  • Connect the TCM connector.

  • Switch the ignition off.

  • Inspect the AT 15 A fuse for malfunction.

  • is it normal?

Yes

Go to the next step.

No

  • If the AT 15 A fuse has been melted, replace it, then go to the Step 8.

  • If the AT 15 A fuse is not installed correctly, install it correctly, then go to Step 8.

4

INSPECT VOLTAGE OF POWER SUPPLY CIRCUIT

  • Inspect the voltage between TCM terminal (wiring harness-side) and body ground.

    • TCM terminal 2AE

    • TCM terminal 2AI

  • Is the voltage B+?

Yes

Go to the next step.

No

Go to Step 6.

5

INSPECT TCM CONNECTOR FOR POOR CONNECTION

  • Switch the ignition off.

  • Disconnect the TCM connector.

  • Inspect for poor connection at TCM terminals 2AE and 2AI (such as damaged/pulled-out pins, corrosion).

  • Is terminal normal?

Yes

Go to Step 8.

No

Repair or replace the connector and/or terminal, then go to Step 8.

6

INSPECT POWER SUPPLY CIRCUIT FOR SHORT TO GROUND

  • Disconnect the positive battery cable.

  • Inspect for continuity between the fuse terminals and body ground.

    • AT 15A fuse terminal and body ground

  • Is there continuity?

Yes

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

  • TCM terminal 2AE—AT 15 A fuse

  • TCM terminal 2AI—AT 15 A fuse

    If there is a common connector:

  • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground.

  • Repair or replace the malfunctioning part.

    If there is no common connector:

  • Repair or replace the wiring harness which has a short to ground.

Go to Step 8.

No

Go to the next step.

7

INSPECT POWER SUPPLY CIRCUIT FOR OPEN CIRCUIT

  • Inspect for continuity between TCM terminal and fuse terminals (wiring harness-side).

    • Terminal 2AE and AT 15 A fuse

    • Terminal 2AI and AT 15 A fuse

  • Is there continuity?

Yes

Go to the next step.

No

Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:

  • TCM terminal 2AE—AT 15A fuse

  • TCM terminal 2AI—AT 15A fuse

    If there is a common connector:

  • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit.

  • Repair or replace the malfunctioning part.

    If there is no common connector:

  • Repair or replace the wiring harness which has an open circuit.

Go to the next step.

8

VERIFY SAME DTC IS NOT PRESENT

Yes

Replace the TCM, then go to the next step.

(See TCM REMOVAL/INSTALLATION [SJ6A-EL].)

No

Go to the next step.

9

VERIFY DTC TROUBLESHOOTING COMPLETED

Yes

Go to the applicable DTC inspection.

(See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE [TCM (SJ6A-EL)].)

No

DTC troubleshooting completed.

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