N: LH Turn Indicator Never/Always ON

N1 Check Turn Signal Operation
- Turn ignition switch to RUN.
- Actuate left turn signal.

Do left turn indicators flash?

Yes
GO to N2.
No
REFER to turn signal lamp system diagnostics.

N2 Check Left Turn Indicator
- Turn ignition switch to RUN.

Is LH turn indicator ON all the time?

Yes
GO to N3
No
GO to N5

N3 Check For Shorted Multi-Function Switch
- Disconnect multi-function switch connector C269.
- Turn ignition switch to RUN.
- Using a voltmeter connected to ground, measure Pin C269 , Circuit 3 (LG/W) for voltage.

Is voltage 5 volts or more?

Yes
GO to N4
No
REPLACE multi-function switch. RESTORE vehicle. RETEST system.

N4 Check Circuit 3 (LG/W) For Short To B+
- Turn ignition switch to OFF.
- Disconnect instrument cluster connector C269
- Turn ignition switch to RUN.
- Using a voltmeter connected to ground, measure for voltage at Pin C269, Circuit 3 (LG/W)

Is voltage 5 volts or more?

Yes
SERVICE Circuit 3 (LG/W) for short to B+. RESTORE vehicle. RETEST system.
No
REPLACE instrument cluster printed circuit. RESTORE vehicle. RETEST system.

N5 Check Turn Signal Feed To Instrument Cluster
- Disconnect instrument cluster connector C250.
- Turn ignition switch to RUN. Actuate left turn signal.
- Using a voltmeter connected to a known good ground, measure for voltage at Pin C250 (C250 FFV vehicle), Circuit 3 (LG/W).

Is voltage 10 volts or more?

Yes
GO to N6.
No
GO to N7.

N6 Check Left Turn Indicator Bulb
- Remove instrument cluster as described.
- Remove left turn indicator bulb.
- Using an ohmmeter, measure resistance across bulb.

Is resistance 13 ohms or less?

Yes
REPLACE instrument cluster printed circuit. RESTORE vehicle. RETEST system.
No
REPLACE bulb. RESTORE vehicle. RETEST system.

N7 Check Circuit 3 (LG/W) For Open
- Disconnect multi-function switch connector C269
- Using an ohmmeter, measure resistance of Circuit 3 (LG/W) between Pin C269 of multi-function switch and Pin C250 (FFV vehicles, C250 ) of instrument cluster.

Is resistance less than 3 ohms?

Yes
REPLACE multi-function switch. RESTORE vehicle. RETEST system.
No
SERVICE Circuit 3 (LG/W) for open. RESTORE vehicle. RETEST system.