SHAFT AS-OIL PUMP 6I1342 - Caterpillar

MID ECM CID 0091 FMI 08Conditions Which Generate This Code:The throttle position signal from the PCP to the ECM is abnormal.Reference: If CID 1326 FMI 09 is also active, use the flow chart in MID PCP CID 1326 FMI 09 to troubleshoot.Test Step 1. DETERMINE WHICH TEST PROCEDURE TO FOLLOW.Determine if CID 0091 FMI 08 is active and CID 1326 FMI 09 is active.Expected Result: CID 0091 FMI 08 is active and CID 1326 FMI 09 is active.Results:
YES - Both CID 0091 FMI 08 (engine ECM) is active and CID 1326 FMI 09 (power train control processor) is not active.Repair: Go to Troubleshooting, " CID 1326 FMI 09".STOP
NO - Only CID 0091 FMI 08 (engine ECM) is active. Go to Test Step 2.STOPTest Step 2. CHECK THE CONNECTORS.
Turn the keyswitch to the OFF position.
Check the connectors for the following conditions: damage, corrosion, abrasion and incorrect attachment. Expected Result:The connectors are in good condition.Results:
OK - The connectors are in good condition. Go to Test Step 3.
NOT OK - The connectors ARE NOT in good condition.Repair: Repair the connector or replace the connector. Exit this procedure. Perform this procedure again.STOPTest Step 3. CHECK THE THROTTLE SIGNAL AT THE PCP.
Qualify the station and activate the station.
Illustration 1 g00949866
Measure the duty cycle between pin 5 and the minus battery terminal on the Marine Junction Box. Move the throttles from low idle to WOT while making the measurement. Refer to Illustration 1. Expected Result:The duty cycle is between 7.5 percent 2.5 percent at low idle and 93.5 percent 2.5 percent at high idle.Results:
OK - The duty cycle is between 7.5 percent 2.5 percent at low idle and 93.5 percent 2.5 percent at high idle. Go to Test Step 4.
NOT OK - The duty cycle IS NOT between 7.5 percent 2.5 percent at low idle and 93.5 percent 2.5 percent at high idle. Repair: Temporarily replace the PCP. Retest the diagnostic code IS NOT active.STOPTest Step 4. MEASURE THE SIGNAL AT THE MJB.
Qualify the station and activate the station.
Illustration 2 g00949888
Measure the duty cycle between pin 25 and pin 38