P0898

Transmission Control System MIL Request Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$6–33 (est.)

Symptoms

Malfunction indicator lamp (MIL) does not come on when there is a problem
Gear shifting problems
Check engine light comes on
Reduced transmission performance
Possible errors in other systems

Causes

Open or short circuit in MIL request circuit
Poor contact in TCM or ECM connectors
Transmission control module (TCM) malfunction
Engine control module (ECM) malfunction
Wiring harness damage

How to Fix

Check the continuity of wires in the MIL request circuit
Check contacts in TCM and ECM connectors
Check MIL Request Circuit Voltage
Perform TCM and ECM diagnostics
Replace damaged wires or connectors

Related codes

P0897 P0899 P0700