5006501 JOHNSON 2006 150 -175HP Parts Catalog (Paper)

Table 1
Diagnostic Codes Table
Code and Description Conditions which Generate this Code System Response
336-2 Engine Control Switch : Erratic, Intermittent, or Incorrect The two inputs from the ECS are in the opposite state. The code is logged. The ECS can operate in four modes: OFF/RESET, START, STOP and REMOTE.The engine's Electronic Control Module (ECM) receives three signals that allow the ECM to determine the mode of operation. The input signals on P1-21 and P1-22 tell the ECM the position of the ECS. The input signals on P1-21 and P1-22 must be at the same potential or a diagnostic code will be generated. The third input signal on P1-68 tells the ECM if the ECS is in the REMOTE position. If the input signal on P1-68 is low, the ECM knows that the ECS is in the REMOTE position. The ECM knows that the engine is controlled remotely by the customer. If the input signal on P1-68 is not low, the ECM knows that the ECS is not in the REMOTE position. The ECM knows that the engine is controlled locally by the ECS on the instrument panel.When the ECS is in the REMOTE position, inputs from the customer control the operation of the engine. The following list contains some of the inputs from the customer connector and the inputs function.
c keyswitch
S remote input
C remote start 2
D remote start 1
E remote stop 1
F remote stop 2When the ECS is in the REMOTE position, the "Remote Start" relay and the "Remote Stop" relay are energized. When the remote start inputs C and D go low, the following relays energize: "Run 1" relay, "Run 2" relay, "Reset 1" relay and "Reset 2" relay. The start/run/stop inputs P1-21 and P1-22 will be pulled low. The engine will begin the start cycle. When the customer's remote stop inputs F and E are low, the following relays energize: "Stop 1" relay and "Stop 2" relay. The start/run/stop inputs P1-21 and P1-22 will be high. The engine will begin the stop function. When the ECS is in the REMOTE position, the "ECS in Remote" relay energizes. The "ECS in Remote" relay sends a signal to the customer connector that allows the customer to determine the position of the ECS.When the ECS is in the START position, the following relays energize: "Run 1" relay, "Run 2" relay, "Reset 1" relay and "Reset 2" relay. The start/run/stop inputs P1-21 and P1-22 will be pulled low. The engine will begin the start cycle.When the ECS is in the STOP position, the following relays energize: "Stop 1" relay and "Stop 2" relay. The start/run/stop inputs P1-21 and P1-22 will be high. The engine will begin the stop function.When the ECS is in the OFF/RESET position, the input for the keyswitch P1-70 is not pulled up to +Battery voltage and the ECM will not operate.
Illustration 1 g01339187
Typical example
Illustration 2 g01244072
P1 ECM connector
(P1-5) Digital return
(P1-21) "Start/Run/Stop 1"
(P1-22) "Start/Run/Stop 2"
(P1-68) "ECS Remote/Auto"
(P1-70) Keyswitch
Illustration 3 g01244073
P2 ECM connector
(P2-54) Digital return
(P2-55) Digital return
Illustration 4 g01324537
Terminal locations for the A-C1/E-C2 RH rigid harness connectors and the C-C1/E-C1 LH rigid harness connectors
(Terminal i) "Start/Run/Stop 1"
(Terminal j) "Start/Run/Stop 2"
(Terminal AL) "Digital return"
(Terminal AK) "Digital return"
Illustration 5 g01324917
Terminal locations for the following connectors G-C6/F-C2/F-C1/A-C92 Connectors for a RH Control panel and G-C6/F-C2/F-C1/C-C17 Connectors for a LH Control panel
(Terminal 19) "Start/Run/Stop 1"
(Terminal 20) "Start/Run/Stop 2"
(Terminal 23) Digital return
(Terminal 45) Digital return
Illustration 6 g01324914
Terminal locations for the TB-C1/C-C18 customer connector
(Terminal C) "Remote start 2"
(Terminal D) "Remote start 1"
(Terminal E) "Remote stop 1"
(Terminal F) "Remote stop 2"
(Terminal S) "ECS in remote"
(Terminal c) "Keyswitch"
Illustration 7 g01337991
Connector locations
(1) A-C1/E-C2 RH rigid harness connectors
(2) A-C2/J-C2 RH rigid harness connectors
(3) P-C1/A-C90 Connectors for the power distribution panel
(4) P-C2/A-C91 Connectors for the power distribution panel
(5) G-C6/F-C2/F-C1/A-C92 Connectors for a RH Control panel
(6) C-C22 Connection for the P2 ECM connector
(7) C-C15 Connection for the P1 ECM connector
(8) G-C6/F-C2/F-C1/C-C17 Connectors for a LH Control panel
(9) C-C18/TB-C1 Customer connectors
(10) C-C2/J-C1 LH rigid harness connectors
(11) C-C1/E-C1 LH rigid harness connectors Test Step 1. Inspect Electrical Connectors and Wiring
Turn the circuit breaker for the battery to the OFF position.
Turn the ECS to the OFF/RESET position.
Thoroughly inspect the ECM connectors J1/P1 and J2/P2. Inspect all of the other connectors in the circuit. Refer to Troubleshooting, "Electrical Connectors - Inspect" for details.
Perform a 45 N (10 lb) pull test on each of the wires in the ECM connector that are associated with the circuit.
Check the allen head screw on each ECM connector for the proper torque. Refer to Troubleshooting, "Electrical Connectors - Inspect" for the correct torque values.
Check the harness and the wiring for abrasion and for pinch points. Expected Result:All connectors, pins, and sockets are completely coupled and/or inserted. The harness and wiring are free of corrosion, of abrasion, and of pinch points.Results:
OK - The connectors and wiring are OK. Proceed to Test Step 2.
Not OK - The connectors and/or wiring need repair.Repair: Repair the con