Pinpoint Test M: The O/D Off Indicator Is Never On

M1 CHECK THE O/D OFF INDICATOR OPERATION
- Key in ON position.
- Observe the O/D OFF indicator.
- Is the O/D OFF indicator always on?
1. Yes: GO to M2.
2. No: GO to M3 .
M2 CHECK THE INSTRUMENT CLUSTER
- Key in OFF position.
- Disconnect: Instrument Cluster C220a.
- Key in ON position.
- Observe the O/D OFF indicator.
- Did the indicator turn off?
1. Yes: REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
2. No: GO to M4 .
M3 CHECK THE INSTRUMENT CLUSTER OPERATION
- Carry out the instrument cluster self-diagnostic mode.
- Did the O/D OFF indicator illuminate?
1. Yes: REFER to INTRODUCTION - CNG, FLEX-FUEL & GASOLINE .
2. No: GO to M4.
M4 CHECK FOR CORRECT INSTRUMENT CLUSTER OPERATION
- Disconnect all the instrument cluster connectors.
- Check for:
  - corrosion
  - pushed-out pins
- Connect all the instrument cluster connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?
1. Yes: INSTALL a new instrument cluster. REFER to INSTRUMENT CLUSTER . TEST the system for normal operation.
2. No: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.