Acura
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control module (ECM) - internal fault
Cause:
    Wiring, ECM

Audi
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control module (ECM) - defective
Cause:
    ECM

Ford
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    PCM Trouble Codes Available in Another Module Conditions
Cause:
    Key on or engine running and the PCM received a request from another module to illuminate the MIL due to a fault that could affect emissions Scan Tool Tips Request PID 0946 to determine which module failed

GM
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Output Driver Module 'A' Error Conditions
Cause:
    Engine running, brakes off, then the PCM received an improper voltage level on the ODM 'A' fault line, condition met for 5 seconds Note the EVAP, Fan or TCC controls may be on or off at the wrong time if this code is set

Honda
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control module (ECM), output driver - internal fault
Cause:
    Wiring, ECM

Isuzu
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control module, output driver 1 - supply voltage high
Cause:
    Wiring, instruments, EVAP canister purge valve, AC compressor relay

Kia
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control relay - voltage low/high
Cause:
    Wiring, engine control relay, charging system

Saab
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control relay - no voltage to ECM pin 1
Cause:
    Wiring, connectors, engine control relay

Volkswagen
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Engine control module (ECM) - defective
Cause:
    ECM