1750-00

1750-00 SLA SYSTEM UNDERVOLTAGE











Diagnostic Test


1. ENGINE CHARGING SYSTEM DTCS PRESENT





Turn the ignition on.

With the DRB III(R), read the engine DTCs.

Are any Engine Charging System DTCs present?

Yes

- Refer to the appropriate symptom.

No

Go To 2



2. FUSED IGNITION SWITCH OUTPUT OR TRACTION SYSTEM RELAY OUTPUT LOW AT SLA





Turn the ignition off.

Disconnect the Shift Lever Assembly harness connector.


NOTE: Check connectors - Clean/repair as necessary.

Start the engine and raise the engine speed to 1500 RPM.

Measure the voltage of the Fused Ignition Switch Output and Traction System Relay Output circuits at the SLA harness connector.

Is the voltage below 9.0 volts for either circuit?

Yes

- Repair the Fused Ignition Switch Output or Traction System Relay Output circuit for an open.
- Perform NAG1 TRANSMISSION VERIFICATION TEST. Transmission Verification Test

No

- Replace the Shift Lever Assembly.
- Perform NAG1 TRANSMISSION VERIFICATION TEST. Transmission Verification Test