Steering Column Code

P0585-SPEED CONTROL MULTIPLEXED SWITCH 1/2 CORRELATION
^ When Monitored:
Continuously with the ignition on.
^ Set Condition:
The Steering Control Module (SCM) has detected that a non-permissible combination has occurred in the Speed Control Switch.

Possible Causes
- INTERMITTENT SPEED CONTROL MULTIPLEXED SWITCH 1/2 CORRELATION DTC
- SPEED CONTROL SWITCH
- STEERING CONTROL MODULE (SCM)

Diagnostic Test
1. DTC IS ACTIVE

NOTE: If P0562-BATTERY VOLTAGE LOW or P0563-BATTERY VOLTAGE HIGH is set along with this DTC, diagnose the battery voltage DTC first.

Ignition on, engine not running.
With the Scan Tool, select View DTC's in the Steering Control Module.
Is the DTC status Active at this time?
YES >>Go to 2
NO >>Go to 4

2. SPEED CONTROL SWITCH
Turn the ignition off.
Replace the Speed Control Switch.
Turn the ignition on.
Move the Speed Control Switch to each position several times.
With the Scan Tool, Clear Stored DTC's in the Steering Control Module.
With the Scan Tool, select View DTC's in the Steering Control Module.
Move the Speed Control Switch to each position several times while monitoring the Scan Tool.
Does this DTC reset?
YES >>Go To 3
NO >>Test Complete.

3. Steering Control Module (SCM)
View repair.
Repair
Replace the Steering Control Module (SCM).

4. INTERMITTENT SPEED CONTROL MULTIPLEXED SWITCH 1/2 CORRELATION DTC
The conditions necessary to set this DTC are not present at this time.
While monitoring the scan tool data relative to this circuit, move the Speed Control Switch to each position several times.
Look for the DTC to reset while the switch is being moved to each position.
Were any problems found?
YES >>Repair as necessary
NO >>Test complete.