PINPOINT TEST D : No Power in START - Vehicles with a Conventional Ignition Switch
- D1 CHECK THE KEY POSITION FOR START INDICATED (START_KEY) PID
- Ignition ON.
- Using a scan tool, view the PCM PIDs.
- Monitor the PCM PID START_KEY.
- Momentarily turn the key to START and release it.
Does the PID read On when the ignition is in the START position?
Yes REFER to REFER to Starting System . No GO to D2. - D2 CHECK FOR VOLTAGE TO THE BCM
- Ignition OFF.
- Disconnect: BCM C2280B.
- Disconnect: PCM C175B.
- With the ignition switch in the START position, measure:
Positive Lead Measurement / Action Negative Lead C2280B-47 Ground
Is the voltage greater than 11 volts?
Yes GO to D4. No GO to D3. - D3 CHECK THE IGNITION START CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect: Ignition Switch.
Is the resistance less than 3 ohms?
Yes INSTALL a new ignition switch. REFER to Ignition Switch . No REPAIR the circuit. - D4 CHECK FOR CORRECT BCM OPERATION
- Disconnect and inspect all BCM connectors.
- Repair:
- corrosion (install new connector or terminals - clean module pins)
- damaged or bent pins - install new terminals/pins
- pushed-out pins - install new pins as necessary
- Reconnect the BCM connectors and all previously disconnected exterior system connectors. Make sure they seat and latch correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new BCM. REFER to Multifunction Electronic Modules or REFER to Multifunction Electronic Modules . No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
