U1501 0F

K-line CIM-ISM, Open

SDI CGM SVG Version 1.58 Date:2018-12-07 H33-1 17 16 2 6 703 17 18 PK 0.35 BN 0.35 PK 0.35 BN 0.35 020516 463 20 ST ON OFF LOCK CPU CPU CPU B+ F020A03

Fault symptom

Message appears in display.

Cannot turn key.

Steering column lock not working.

Engine does not start.

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Diagnostics runs when key is inserted.

Fault criteria:

No response from ISM.

System reaction to a fault:

K lead restart.
Steering column lock deactivated.
Engine does not start.

Checking the wiring harness

Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Do not touch the brake pedal.

Diagnostic help

Diagnosis regards:

•Diagnostic trouble code can be generated with low battery voltage.
Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:

Test value:
Ignition Switch +50, K-Line from ISM
Ignition Switch +B, K-Line from ISM
Ignition Switch +X, K-Line from ISM
Ignition Switch +15, K-Line from ISM
(See also description of readings/activations in diagnostic tool)