Workshop Manual

6E–90
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
No Reduced Power Lamp (RPL)
Step Action Value(s) Yes No
1 Was the “On-Board Diagnostic (OBD) System Check”
Performed?
— Go to Step 2
Go to OBD
System
Check
2 Attempt to start the engine.
Does the engine start?
— Go to Step 3 Go to Step 11
3 Check the following fuses:
MAIN(100A), B+1(60A), B+2(50A), METER(15A),
ECM(15A) , ENGINE(15A)
Was a problem found?
— Go to Step 14 Go to Step 4
4 1. Ignition ”OFF”.
2. Disconnect the cluster meter connector.
3. Ignition “ON”, Probe the ignition feed circuit at the
cluster connector with a test light to ground.
Is the test light “ON”?
— Go to Step 5 Go to Step 15
5 1. Ignition “OFF”.
2. Disconnect the Multiplex Control Unit.
3. Check the circuit (Lamp driver Circuit) between
PCM and Multiplex Control Unit.
Was a problem found?
— Go to Step 16 Go to Step 6
6 1. Reconnect the cluster meter connector.
2. Disconnect the Multiplex Control Unit.
3. Jumper the RPL driver circuit at the Multiplex
Control Unit connector to ground.
4. Ignition “ON”.
Is the RPL “ON”?
— Go to Step 7
Go to
Instrument
Panel in
Electrical
Diagnosis
7 1. Ignition “OFF”.
2. Probe the ignition feed circuit at the Multiplex
Control Unit connector with a test light to ground.
3. Ignition “ON”.
Is the test light “ON”?
— Go to Step 8 Go to Step 17
8 1. Ignition “OFF”.
2. Disconnect the PCM.
3. Check the circuit (Lamp driver Circuit) between
PCM and Multiplex Control Unit.
Was a problem found?
— Go to Step 18 Go to Step 9
9 Check the Multiplex Control Unit ground connection
and circuit.
Was a problem found?
— Go to Step 19 Go to Step 10
10 Check for damaged terminals at the Multiplex Control
Unit.
Was a problem found?
— Go to Step 20 Go to Step 11
11 1. Ignition “ON”.
2. Probe the ignition feed circuit at the PCM harness
connector with a test light to ground.
Is the test light “ON”?
— Go to Step 12 Go to Step 21